x+20-7=100

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Solution for x+20-7=100 equation: 


Simplifying
x + 20 + -7 = 100

Reorder the terms:
20 + -7 + x = 100

Combine like terms: 20 + -7 = 13
13 + x = 100

Solving
13 + x = 100

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + x = 100 + -13

Combine like terms: 13 + -13 = 0
0 + x = 100 + -13
x = 100 + -13

Combine like terms: 100 + -13 = 87
x = 87

Simplifying
x = 87

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