20+x-5=12

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Solution for 20+x-5=12 equation: 


Simplifying
20 + x + -5 = 12

Reorder the terms:
20 + -5 + x = 12

Combine like terms: 20 + -5 = 15
15 + x = 12

Solving
15 + x = 12

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + x = 12 + -15

Combine like terms: 15 + -15 = 0
0 + x = 12 + -15
x = 12 + -15

Combine like terms: 12 + -15 = -3
x = -3

Simplifying
x = -3

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