The answer for ''4x = 5x - 12'' would be x = 12.
4x - 5x = 12 (subtract 5x from both sides)
-x = -12 (simplify 4x - 5x to -x)
x = -12 ( multiply both sides by -1) .
For the 2nd one ''10p + 5 = 18p - 6/2''
The answer is 1 not those choices
10p + 5 = 18p - 3
5 = 18p - 3 - 10p
5 = 8p - 3
5 + 3 = 8p
8 = 8p
1 = p
p = 1.