4(3x - 6) + 15 = 27
First multiply the parenthesis by 4:
4(3x - 6) + 15 = 27
12x -24 + 15 = 27
Next, calculate the sum:
12x -24 + 15 = 27
12x -9 = 27
Next, move constant to the right side and change its sign:
12x -9 = 27
12x = 27 + 9
Next, add the numbers:
12x = 27 + 9
12 x = 36
Finally divide both sides by 12:
x = 3