12x-4(9x-20)=320

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Solution for 12x-4(9x-20)=320 equation:


Simplifying
12x + -4(9x + -20) = 320

Reorder the terms:
12x + -4(-20 + 9x) = 320
12x + (-20 * -4 + 9x * -4) = 320
12x + (80 + -36x) = 320

Reorder the terms:
80 + 12x + -36x = 320

Combine like terms: 12x + -36x = -24x
80 + -24x = 320

Solving
80 + -24x = 320

Solving for variable 'x'.

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

Add '-80' to each side of the equation.
80 + -80 + -24x = 320 + -80

Combine like terms: 80 + -80 = 0
0 + -24x = 320 + -80
-24x = 320 + -80

Combine like terms: 320 + -80 = 240
-24x = 240

Divide each side by '-24'.
x = -10

Simplifying
x = -10

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