20=7x+5(-4x+17)

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Solution for 20=7x+5(-4x+17) equation:


Simplifying
20 = 7x + 5(-4x + 17)

Reorder the terms:
20 = 7x + 5(17 + -4x)
20 = 7x + (17 * 5 + -4x * 5)
20 = 7x + (85 + -20x)

Reorder the terms:
20 = 85 + 7x + -20x

Combine like terms: 7x + -20x = -13x
20 = 85 + -13x

Solving
20 = 85 + -13x

Solving for variable 'x'.

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

Add '13x' to each side of the equation.
20 + 13x = 85 + -13x + 13x

Combine like terms: -13x + 13x = 0
20 + 13x = 85 + 0
20 + 13x = 85

Add '-20' to each side of the equation.
20 + -20 + 13x = 85 + -20

Combine like terms: 20 + -20 = 0
0 + 13x = 85 + -20
13x = 85 + -20

Combine like terms: 85 + -20 = 65
13x = 65

Divide each side by '13'.
x = 5

Simplifying
x = 5

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