Given: 9 - 4x = -19 Prove: x = 7
Solve for x in the equation 9 - 4x = - 19
Step 1: Group constants:
We need to group our constants 9 and -19. To do that, we subtract 9 from both sides
-4x + 9 - 9 = -19 - 9
Step 2: Cancel 9 on the left side:
-4x = -28
Step 3: Divide each side of the equation by -4
-4x/-4 = -28/-4
x = 7
Solve for x in the equation 9 - 4x = - 19
Step 1: Group constants:
We need to group our constants 9 and -19. To do that, we subtract 9 from both sides
-4x + 9 - 9 = -19 - 9
Step 2: Cancel 9 on the left side:
-4x = -28
Step 3: Divide each side of the equation by -4
-4x/-4 = -28/-4
x = 7