4(x-3)-5(x-5)=20

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Solution for 4(x-3)-5(x-5)=20 equation:


Simplifying
4(x + -3) + -5(x + -5) = 20

Reorder the terms:
4(-3 + x) + -5(x + -5) = 20
(-3 * 4 + x * 4) + -5(x + -5) = 20
(-12 + 4x) + -5(x + -5) = 20

Reorder the terms:
-12 + 4x + -5(-5 + x) = 20
-12 + 4x + (-5 * -5 + x * -5) = 20
-12 + 4x + (25 + -5x) = 20

Reorder the terms:
-12 + 25 + 4x + -5x = 20

Combine like terms: -12 + 25 = 13
13 + 4x + -5x = 20

Combine like terms: 4x + -5x = -1x
13 + -1x = 20

Solving
13 + -1x = 20

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + -1x = 20 + -13

Combine like terms: 13 + -13 = 0
0 + -1x = 20 + -13
-1x = 20 + -13

Combine like terms: 20 + -13 = 7
-1x = 7

Divide each side by '-1'.
x = -7

Simplifying
x = -7

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