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

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


Simplifying
7x + -1(5x + 4) = 5x + -40

Reorder the terms:
7x + -1(4 + 5x) = 5x + -40
7x + (4 * -1 + 5x * -1) = 5x + -40
7x + (-4 + -5x) = 5x + -40

Reorder the terms:
-4 + 7x + -5x = 5x + -40

Combine like terms: 7x + -5x = 2x
-4 + 2x = 5x + -40

Reorder the terms:
-4 + 2x = -40 + 5x

Solving
-4 + 2x = -40 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
-4 + 2x + -5x = -40 + 5x + -5x

Combine like terms: 2x + -5x = -3x
-4 + -3x = -40 + 5x + -5x

Combine like terms: 5x + -5x = 0
-4 + -3x = -40 + 0
-4 + -3x = -40

Add '4' to each side of the equation.
-4 + 4 + -3x = -40 + 4

Combine like terms: -4 + 4 = 0
0 + -3x = -40 + 4
-3x = -40 + 4

Combine like terms: -40 + 4 = -36
-3x = -36

Divide each side by '-3'.
x = 12

Simplifying
x = 12

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