This math topic focuses on finding the x-intercept of linear equations presented in standard form. Each problem provides a linear equation with decimal coefficients and instructions to calculate the x-intercept by setting y to zero and solving for x. The equations vary, ensuring practice with positive, negative, and zero coefficients, enhancing skills in manipulating algebraic expressions to isolate variables and using arithmetic skills to solve equations involving decimals. This is part of a broader unit on line equations and graphing practice.