Solve for x: 4x - 3 = 3x - 9

A. x = - 2
B. x = 7
C. x = - 6
D. x = 5

1 answer

To solve for x, we need to isolate x on one side of the equation.

4x - 3 = 3x - 9
Subtract 3x from both sides:
4x - 3x - 3 = 3x - 3x - 9
x - 3 = -9
Add 3 to both sides:
x - 3 + 3 = -9 + 3
x = -6

Therefore, x = -6

The answer is C. x = -6.