8(12-x)=3(x+21)

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Solution for 8(12-x)=3(x+21) equation:


Simplifying
8(12 + -1x) = 3(x + 21)
(12 * 8 + -1x * 8) = 3(x + 21)
(96 + -8x) = 3(x + 21)

Reorder the terms:
96 + -8x = 3(21 + x)
96 + -8x = (21 * 3 + x * 3)
96 + -8x = (63 + 3x)

Solving
96 + -8x = 63 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
96 + -8x + -3x = 63 + 3x + -3x

Combine like terms: -8x + -3x = -11x
96 + -11x = 63 + 3x + -3x

Combine like terms: 3x + -3x = 0
96 + -11x = 63 + 0
96 + -11x = 63

Add '-96' to each side of the equation.
96 + -96 + -11x = 63 + -96

Combine like terms: 96 + -96 = 0
0 + -11x = 63 + -96
-11x = 63 + -96

Combine like terms: 63 + -96 = -33
-11x = -33

Divide each side by '-11'.
x = 3

Simplifying
x = 3

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