2x+18+9=x+20

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Solution for 2x+18+9=x+20 equation:


Simplifying
2x + 18 + 9 = x + 20

Reorder the terms:
18 + 9 + 2x = x + 20

Combine like terms: 18 + 9 = 27
27 + 2x = x + 20

Reorder the terms:
27 + 2x = 20 + x

Solving
27 + 2x = 20 + 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.
27 + 2x + -1x = 20 + x + -1x

Combine like terms: 2x + -1x = 1x
27 + 1x = 20 + x + -1x

Combine like terms: x + -1x = 0
27 + 1x = 20 + 0
27 + 1x = 20

Add '-27' to each side of the equation.
27 + -27 + 1x = 20 + -27

Combine like terms: 27 + -27 = 0
0 + 1x = 20 + -27
1x = 20 + -27

Combine like terms: 20 + -27 = -7
1x = -7

Divide each side by '1'.
x = -7

Simplifying
x = -7

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