4(3-5x)=-40-7x

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Solution for 4(3-5x)=-40-7x equation:


Simplifying
4(3 + -5x) = -40 + -7x
(3 * 4 + -5x * 4) = -40 + -7x
(12 + -20x) = -40 + -7x

Solving
12 + -20x = -40 + -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
12 + -20x + 7x = -40 + -7x + 7x

Combine like terms: -20x + 7x = -13x
12 + -13x = -40 + -7x + 7x

Combine like terms: -7x + 7x = 0
12 + -13x = -40 + 0
12 + -13x = -40

Add '-12' to each side of the equation.
12 + -12 + -13x = -40 + -12

Combine like terms: 12 + -12 = 0
0 + -13x = -40 + -12
-13x = -40 + -12

Combine like terms: -40 + -12 = -52
-13x = -52

Divide each side by '-13'.
x = 4

Simplifying
x = 4

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