40-0.5x=3x+12

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Solution for 40-0.5x=3x+12 equation: 


Simplifying
40 + -0.5x = 3x + 12

Reorder the terms:
40 + -0.5x = 12 + 3x

Solving
40 + -0.5x = 12 + 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 + -0.5x + -3x = 12 + 3x + -3x

Combine like terms: -0.5x + -3x = -3.5x
40 + -3.5x = 12 + 3x + -3x

Combine like terms: 3x + -3x = 0
40 + -3.5x = 12 + 0
40 + -3.5x = 12

Add '-40' to each side of the equation.
40 + -40 + -3.5x = 12 + -40

Combine like terms: 40 + -40 = 0
0 + -3.5x = 12 + -40
-3.5x = 12 + -40

Combine like terms: 12 + -40 = -28
-3.5x = -28

Divide each side by '-3.5'.
x = 8

Simplifying
x = 8

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