4x+3(5x-7x)=12

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Solution for 4x+3(5x-7x)=12 equation: 


Simplifying
4x + 3(5x + -7x) = 12

Combine like terms: 5x + -7x = -2x
4x + 3(-2x) = 12

Remove parenthesis around (-2x)
4x + 3 * -2x = 12

Multiply 3 * -2
4x + -6x = 12

Combine like terms: 4x + -6x = -2x
-2x = 12

Solving
-2x = 12

Solving for variable 'x'.

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

Divide each side by '-2'.
x = -6

Simplifying
x = -6

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