x+x+20=30+x+100

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Solution for x+x+20=30+x+100 equation:


Simplifying
x + x + 20 = 30 + x + 100

Reorder the terms:
20 + x + x = 30 + x + 100

Combine like terms: x + x = 2x
20 + 2x = 30 + x + 100

Reorder the terms:
20 + 2x = 30 + 100 + x

Combine like terms: 30 + 100 = 130
20 + 2x = 130 + x

Solving
20 + 2x = 130 + 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.
20 + 2x + -1x = 130 + x + -1x

Combine like terms: 2x + -1x = 1x
20 + 1x = 130 + x + -1x

Combine like terms: x + -1x = 0
20 + 1x = 130 + 0
20 + 1x = 130

Add '-20' to each side of the equation.
20 + -20 + 1x = 130 + -20

Combine like terms: 20 + -20 = 0
0 + 1x = 130 + -20
1x = 130 + -20

Combine like terms: 130 + -20 = 110
1x = 110

Divide each side by '1'.
x = 110

Simplifying
x = 110

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