3(3x-6)-4(3x-6)=-45

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Solution for 3(3x-6)-4(3x-6)=-45 equation:


Simplifying
3(3x + -6) + -4(3x + -6) = -45

Reorder the terms:
3(-6 + 3x) + -4(3x + -6) = -45
(-6 * 3 + 3x * 3) + -4(3x + -6) = -45
(-18 + 9x) + -4(3x + -6) = -45

Reorder the terms:
-18 + 9x + -4(-6 + 3x) = -45
-18 + 9x + (-6 * -4 + 3x * -4) = -45
-18 + 9x + (24 + -12x) = -45

Reorder the terms:
-18 + 24 + 9x + -12x = -45

Combine like terms: -18 + 24 = 6
6 + 9x + -12x = -45

Combine like terms: 9x + -12x = -3x
6 + -3x = -45

Solving
6 + -3x = -45

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + -3x = -45 + -6

Combine like terms: 6 + -6 = 0
0 + -3x = -45 + -6
-3x = -45 + -6

Combine like terms: -45 + -6 = -51
-3x = -51

Divide each side by '-3'.
x = 17

Simplifying
x = 17

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