9-4(7x-8x)=-3

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Solution for 9-4(7x-8x)=-3 equation:


Simplifying
9 + -4(7x + -8x) = -3

Combine like terms: 7x + -8x = -1x
9 + -4(-1x) = -3

Remove parenthesis around (-1x)
9 + -4 * -1x = -3

Multiply -4 * -1
9 + 4x = -3

Solving
9 + 4x = -3

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 4x = -3 + -9

Combine like terms: 9 + -9 = 0
0 + 4x = -3 + -9
4x = -3 + -9

Combine like terms: -3 + -9 = -12
4x = -12

Divide each side by '4'.
x = -3

Simplifying
x = -3

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