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Linear Equation Systems - Simple Equation Substitution (Level 2)

This math topic focuses on solving linear systems by simple equation substitution. The problems involve substituting one equation into another to solve for variables in algebraic equations. Students are tasked with solving systems, providing practice in manipulating equations to isolate variables and substituting correctly to find solutions. Multiple-choice answers are provided for each problem, requiring students to select the correct value of the variable from several options. This is a fundamental exercise for building skills in algebra and understanding systems of linear equations.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

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Linear Equation Systems - Simple Equation Substitution

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.


Solve for the variable by substituting the second equation into the first

10b+8r=110r=5b−5b=?10b + 8r = 110\\r = 5b - 5\\b = ?

Linear Equation Systems - Simple Equation Substitution Worksheet

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Math worksheet on 'Linear Equation Systems - Simple Equation Substitution (Level 2)'. Part of a broader unit on 'Algebra Systems of Equations - Intro' Learn online: app.mobius.academy/math/units/algebra_systems_of_equations_intro/
1
Solve for the variable by substituting the second equation into the first
A LaTex expression showing 6b + 4y = 40\\y = 6b - 5\\b = ?
a A LaTex expression showing b = 0
b A LaTex expression showing b = 5
c A LaTex expression showing b = 20
d A LaTex expression showing b = 24
e A LaTex expression showing b = 1
f A LaTex expression showing b = 2
2
Solve for the variable by substituting the second equation into the first
A LaTex expression showing 11n + 2z = 119\\z = 11n + 10\\n = ?
a A LaTex expression showing n = 22
b A LaTex expression showing n = 6
c A LaTex expression showing n = 1
d A LaTex expression showing n = 2
e A LaTex expression showing n = 20
f A LaTex expression showing n = 3
3
Solve for the variable by substituting the second equation into the first
A LaTex expression showing 5y + 8m = 52\\m = 3y - 8\\y = ?
a A LaTex expression showing y = 64
b A LaTex expression showing y = 7
c A LaTex expression showing y = 3
d A LaTex expression showing y = 24
e A LaTex expression showing y = 2
f A LaTex expression showing y = 4
4
Solve for the variable by substituting the second equation into the first
A LaTex expression showing 4n + 4c = 64\\c = 5n + 4\\n = ?
a A LaTex expression showing n = 2
b A LaTex expression showing n = 1
c A LaTex expression showing n = 20
d A LaTex expression showing n = 16
e A LaTex expression showing n = 0
f A LaTex expression showing n = 5
5
Solve for the variable by substituting the second equation into the first
A LaTex expression showing 6d + 5m = 62\\m = 2d - 10\\d = ?
a A LaTex expression showing d = 50
b A LaTex expression showing d = 6
c A LaTex expression showing d = 5
d A LaTex expression showing d = 10
e A LaTex expression showing d = 10
f A LaTex expression showing d = 7
6
Solve for the variable by substituting the second equation into the first
A LaTex expression showing 4m + 3b = 5\\b = 5m - 11\\m = ?
a A LaTex expression showing m = 33
b A LaTex expression showing m = 1
c A LaTex expression showing m = 15
d A LaTex expression showing m = 0
e A LaTex expression showing m = 2
f A LaTex expression showing m = 5
7
Solve for the variable by substituting the second equation into the first
A LaTex expression showing 2y + 6d = 70\\d = 3y - 5\\y = ?
a A LaTex expression showing y = 8
b A LaTex expression showing y = 4
c A LaTex expression showing y = 30
d A LaTex expression showing y = 3
e A LaTex expression showing y = 18
f A LaTex expression showing y = 5