20-(x+5)=9(2x+8)

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Solution for 20-(x+5)=9(2x+8) equation:


Simplifying
20 + -1(x + 5) = 9(2x + 8)

Reorder the terms:
20 + -1(5 + x) = 9(2x + 8)
20 + (5 * -1 + x * -1) = 9(2x + 8)
20 + (-5 + -1x) = 9(2x + 8)

Combine like terms: 20 + -5 = 15
15 + -1x = 9(2x + 8)

Reorder the terms:
15 + -1x = 9(8 + 2x)
15 + -1x = (8 * 9 + 2x * 9)
15 + -1x = (72 + 18x)

Solving
15 + -1x = 72 + 18x

Solving for variable 'x'.

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

Add '-18x' to each side of the equation.
15 + -1x + -18x = 72 + 18x + -18x

Combine like terms: -1x + -18x = -19x
15 + -19x = 72 + 18x + -18x

Combine like terms: 18x + -18x = 0
15 + -19x = 72 + 0
15 + -19x = 72

Add '-15' to each side of the equation.
15 + -15 + -19x = 72 + -15

Combine like terms: 15 + -15 = 0
0 + -19x = 72 + -15
-19x = 72 + -15

Combine like terms: 72 + -15 = 57
-19x = 57

Divide each side by '-19'.
x = -3

Simplifying
x = -3

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