40-x=3x+8

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


Simplifying
40 + -1x = 3x + 8

Reorder the terms:
40 + -1x = 8 + 3x

Solving
40 + -1x = 8 + 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.
40 + -1x + -3x = 8 + 3x + -3x

Combine like terms: -1x + -3x = -4x
40 + -4x = 8 + 3x + -3x

Combine like terms: 3x + -3x = 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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