7x+8=3x-40

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Solution for 7x+8=3x-40 equation:


Simplifying
7x + 8 = 3x + -40

Reorder the terms:
8 + 7x = 3x + -40

Reorder the terms:
8 + 7x = -40 + 3x

Solving
8 + 7x = -40 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
8 + 7x + -3x = -40 + 3x + -3x

Combine like terms: 7x + -3x = 4x
8 + 4x = -40 + 3x + -3x

Combine like terms: 3x + -3x = 0
8 + 4x = -40 + 0
8 + 4x = -40

Add '-8' to each side of the equation.
8 + -8 + 4x = -40 + -8

Combine like terms: 8 + -8 = 0
0 + 4x = -40 + -8
4x = -40 + -8

Combine like terms: -40 + -8 = -48
4x = -48

Divide each side by '4'.
x = -12

Simplifying
x = -12

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