4(2x+5)-5(x-2)=20-2x

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Solution for 4(2x+5)-5(x-2)=20-2x equation:


Simplifying
4(2x + 5) + -5(x + -2) = 20 + -2x

Reorder the terms:
4(5 + 2x) + -5(x + -2) = 20 + -2x
(5 * 4 + 2x * 4) + -5(x + -2) = 20 + -2x
(20 + 8x) + -5(x + -2) = 20 + -2x

Reorder the terms:
20 + 8x + -5(-2 + x) = 20 + -2x
20 + 8x + (-2 * -5 + x * -5) = 20 + -2x
20 + 8x + (10 + -5x) = 20 + -2x

Reorder the terms:
20 + 10 + 8x + -5x = 20 + -2x

Combine like terms: 20 + 10 = 30
30 + 8x + -5x = 20 + -2x

Combine like terms: 8x + -5x = 3x
30 + 3x = 20 + -2x

Solving
30 + 3x = 20 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
30 + 3x + 2x = 20 + -2x + 2x

Combine like terms: 3x + 2x = 5x
30 + 5x = 20 + -2x + 2x

Combine like terms: -2x + 2x = 0
30 + 5x = 20 + 0
30 + 5x = 20

Add '-30' to each side of the equation.
30 + -30 + 5x = 20 + -30

Combine like terms: 30 + -30 = 0
0 + 5x = 20 + -30
5x = 20 + -30

Combine like terms: 20 + -30 = -10
5x = -10

Divide each side by '5'.
x = -2

Simplifying
x = -2

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