3(-2x+8)=21

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Solution for 3(-2x+8)=21 equation: 


Simplifying
3(-2x + 8) = 21

Reorder the terms:
3(8 + -2x) = 21
(8 * 3 + -2x * 3) = 21
(24 + -6x) = 21

Solving
24 + -6x = 21

Solving for variable 'x'.

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

Add '-24' to each side of the equation.
24 + -24 + -6x = 21 + -24

Combine like terms: 24 + -24 = 0
0 + -6x = 21 + -24
-6x = 21 + -24

Combine like terms: 21 + -24 = -3
-6x = -3

Divide each side by '-6'.
x = 0.5

Simplifying
x = 0.5

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