Chapter 3 - Equations and Problem Solving - 3.3 - More on Solving Equations and Problem Solving - Problem Set 3.3 - Page 114: 14

$x=10$

Using the properties of equality and combining like terms, the value of the variable that satisfies the given equation, $ 7x-3=8x-13 ,$ is \begin{array}{l}\require{cancel} 7x-8x=-13+3 \\\\ -x=-10 \\\\ x=10 .\end{array}