(15-4x)=(20-2x)

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Solution for (15-4x)=(20-2x) equation: 


Simplifying
(15 + -4x) = (20 + -2x)

Remove parenthesis around (15 + -4x)
15 + -4x = (20 + -2x)

Remove parenthesis around (20 + -2x)
15 + -4x = 20 + -2x

Solving
15 + -4x = 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.
15 + -4x + 2x = 20 + -2x + 2x

Combine like terms: -4x + 2x = -2x
15 + -2x = 20 + -2x + 2x

Combine like terms: -2x + 2x = 0
15 + -2x = 20 + 0
15 + -2x = 20

Add '-15' to each side of the equation.
15 + -15 + -2x = 20 + -15

Combine like terms: 15 + -15 = 0
0 + -2x = 20 + -15
-2x = 20 + -15

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

Divide each side by '-2'.
x = -2.5

Simplifying
x = -2.5

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