16x-3(4x-4)=6x-5x+21

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Solution for 16x-3(4x-4)=6x-5x+21 equation:


Simplifying
16x + -3(4x + -4) = 6x + -5x + 21

Reorder the terms:
16x + -3(-4 + 4x) = 6x + -5x + 21
16x + (-4 * -3 + 4x * -3) = 6x + -5x + 21
16x + (12 + -12x) = 6x + -5x + 21

Reorder the terms:
12 + 16x + -12x = 6x + -5x + 21

Combine like terms: 16x + -12x = 4x
12 + 4x = 6x + -5x + 21

Reorder the terms:
12 + 4x = 21 + 6x + -5x

Combine like terms: 6x + -5x = 1x
12 + 4x = 21 + 1x

Solving
12 + 4x = 21 + 1x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
12 + 4x + -1x = 21 + 1x + -1x

Combine like terms: 4x + -1x = 3x
12 + 3x = 21 + 1x + -1x

Combine like terms: 1x + -1x = 0
12 + 3x = 21 + 0
12 + 3x = 21

Add '-12' to each side of the equation.
12 + -12 + 3x = 21 + -12

Combine like terms: 12 + -12 = 0
0 + 3x = 21 + -12
3x = 21 + -12

Combine like terms: 21 + -12 = 9
3x = 9

Divide each side by '3'.
x = 3

Simplifying
x = 3

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