Question

Solve this(7x+2=3x-2) Proof you are an expert and you do know

Answer 1

So, 7x + 2 = 3x - 2   / -3x;

7x - 3x + 2 = 3x - 3x - 2;

4x + 2 = 0 - 2;

4x + 2 = -2;   / -2

4x + 2 - 2 = - 2 - 2;

4x = -4;  /÷4

x = - 1.

The solution is - 1.