40=3x-7x+8

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


Simplifying
40 = 3x + -7x + 8

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

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

Solving
40 = 8 + -4x

Solving for variable 'x'.

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

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

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

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

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

Combine like terms: 8 + -40 = -32
4x = -32

Divide each side by '4'.
x = -8

Simplifying
x = -8

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