15-51-7=x

Solution for 15-51-7=x equation:

Simplifying
15 + -51 + -7 = x

Combine like terms: 15 + -51 = -36
-36 + -7 = x

Combine like terms: -36 + -7 = -43
-43 = x

Solving
-43 = x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-1x' to each side of the equation.
-43 + -1x = x + -1x

Combine like terms: x + -1x = 0
-43 + -1x = 0

Add '43' to each side of the equation.
-43 + 43 + -1x = 0 + 43

Combine like terms: -43 + 43 = 0
0 + -1x = 0 + 43
-1x = 0 + 43

Combine like terms: 0 + 43 = 43
-1x = 43

Divide each side by '-1'.
x = -43

Simplifying
x = -43