### Home > AC > Chapter 4 > Lesson 4.1.7 > Problem4-64

4-64.

1. $2x − 3 = 7$

Add $3$ to both sides to get the variable by itself.

\begin{align*}2x−3&=7 \\ +3 &+3\end{align*}

$2x = 10$

Solve for $x$.

$x = 5$

1. $3x + 5 − x = x − 3$

Combine like terms.

Follow the steps in part (a).

1. $5x − \left(x + 1\right) = 6 − 2x$

How does the negative sign in front of the parentheses change what is inside it?

Follow the steps in part (b).

1. $0.5x − 5 = x + 4$

Follow the steps in part (b).

$x = −18$