Question

What is 2x-15+21= -18​

Answer 1

2x - 15 +21 = -18

2x + 6 + 18 = 0

2x + 24 =0 ...it is a linear equation

if u want to solve for X then..

2x = -24

X = - 24

2

X = -12

Answer 2

Hopes this helps:

Answer: x = -12

How I know I use this app called Cymath.