20-(2x+5)=x+18

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Solution for 20-(2x+5)=x+18 equation:


Simplifying
20 + -1(2x + 5) = x + 18

Reorder the terms:
20 + -1(5 + 2x) = x + 18
20 + (5 * -1 + 2x * -1) = x + 18
20 + (-5 + -2x) = x + 18

Combine like terms: 20 + -5 = 15
15 + -2x = x + 18

Reorder the terms:
15 + -2x = 18 + x

Solving
15 + -2x = 18 + 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.
15 + -2x + -1x = 18 + x + -1x

Combine like terms: -2x + -1x = -3x
15 + -3x = 18 + x + -1x

Combine like terms: x + -1x = 0
15 + -3x = 18 + 0
15 + -3x = 18

Add '-15' to each side of the equation.
15 + -15 + -3x = 18 + -15

Combine like terms: 15 + -15 = 0
0 + -3x = 18 + -15
-3x = 18 + -15

Combine like terms: 18 + -15 = 3
-3x = 3

Divide each side by '-3'.
x = -1

Simplifying
x = -1

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