4+8=x-7

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Solution for 4+8=x-7 equation:


Simplifying
4 + 8 = x + -7

Combine like terms: 4 + 8 = 12
12 = x + -7

Reorder the terms:
12 = -7 + x

Solving
12 = -7 + 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.
12 + -1x = -7 + x + -1x

Combine like terms: x + -1x = 0
12 + -1x = -7 + 0
12 + -1x = -7

Add '-12' to each side of the equation.
12 + -12 + -1x = -7 + -12

Combine like terms: 12 + -12 = 0
0 + -1x = -7 + -12
-1x = -7 + -12

Combine like terms: -7 + -12 = -19
-1x = -19

Divide each side by '-1'.
x = 19

Simplifying
x = 19

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