3(7-3)=-4x+40

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


Simplifying
3(7 + -3) = -4x + 40

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

Multiply 3 * 4
12 = -4x + 40

Reorder the terms:
12 = 40 + -4x

Solving
12 = 40 + -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.
12 + 4x = 40 + -4x + 4x

Combine like terms: -4x + 4x = 0
12 + 4x = 40 + 0
12 + 4x = 40

Add '-12' to each side of the equation.
12 + -12 + 4x = 40 + -12

Combine like terms: 12 + -12 = 0
0 + 4x = 40 + -12
4x = 40 + -12

Combine like terms: 40 + -12 = 28
4x = 28

Divide each side by '4'.
x = 7

Simplifying
x = 7

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