Find the error in the solution, and then solve it correctly. 7x + 12 + 3x = 8
7x + 12 = 5
7x = -7
x= -7/7

3х (or 3) was subtracted from the left side, but 3 (or 3x) was subtracted from the
right side. The Subtraction Property of Equality states that you can subtract the
same number from each side and the equation will remain true. But 3x and 3 are
not the same number (unless x is 1 ( or 0 or 2)
X =