4(7-3x)=40

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Solution for 4(7-3x)=40 equation: 


Simplifying
4(7 + -3x) = 40
(7 * 4 + -3x * 4) = 40
(28 + -12x) = 40

Solving
28 + -12x = 40

Solving for variable 'x'.

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

Add '-28' to each side of the equation.
28 + -28 + -12x = 40 + -28

Combine like terms: 28 + -28 = 0
0 + -12x = 40 + -28
-12x = 40 + -28

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

Divide each side by '-12'.
x = -1

Simplifying
x = -1

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