### Home > CAAC > Chapter 3 > Lesson 3.1.5 > Problem 3-49

3-49.

Flip subtraction to addition.

Add 2*x* to both sides.

Add 7 to both sides.

Divide by 4 on both sides.

2*x* + (−7) = −2*x* +1

4*x* + (−7) = 1

4*x* = 8

*x* = 2

See the hints in part (a).

3-49.

Flip subtraction to addition.

Add 2*x* to both sides.

Add 7 to both sides.

Divide by 4 on both sides.

2*x* + (−7) = −2*x* +1

4*x* + (−7) = 1

4*x* = 8

*x* = 2

See the hints in part (a).