4=-3x+40

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Solution for 4=-3x+40 equation:


Simplifying
4 = -3x + 40

Reorder the terms:
4 = 40 + -3x

Solving
4 = 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.
4 + 3x = 40 + -3x + 3x

Combine like terms: -3x + 3x = 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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