Question

Simplify the expression 4x + 3 - x - 7​

Answer 1

3x - 4

Explanation:

The first, and last, step is to add like terms (4x and -x, 3 and -7), like so:

4x + 3 - x - 7

4x - x = 3x

3 - 7 = - 4

3x - 4