28+x-20=42

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Solution for 28+x-20=42 equation: 


Simplifying
28 + x + -20 = 42

Reorder the terms:
28 + -20 + x = 42

Combine like terms: 28 + -20 = 8
8 + x = 42

Solving
8 + x = 42

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -8 + x = 42 + -8

Combine like terms: 8 + -8 = 0
0 + x = 42 + -8
x = 42 + -8

Combine like terms: 42 + -8 = 34
x = 34

Simplifying
x = 34

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