x+20+x+12=90

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Solution for x+20+x+12=90 equation:


Simplifying
x + 20 + x + 12 = 90

Reorder the terms:
20 + 12 + x + x = 90

Combine like terms: 20 + 12 = 32
32 + x + x = 90

Combine like terms: x + x = 2x
32 + 2x = 90

Solving
32 + 2x = 90

Solving for variable 'x'.

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

Add '-32' to each side of the equation.
32 + -32 + 2x = 90 + -32

Combine like terms: 32 + -32 = 0
0 + 2x = 90 + -32
2x = 90 + -32

Combine like terms: 90 + -32 = 58
2x = 58

Divide each side by '2'.
x = 29

Simplifying
x = 29

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