5x+2(-2x+6)=21

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Solution for 5x+2(-2x+6)=21 equation:


Simplifying
5x + 2(-2x + 6) = 21

Reorder the terms:
5x + 2(6 + -2x) = 21
5x + (6 * 2 + -2x * 2) = 21
5x + (12 + -4x) = 21

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

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

Solving
12 + 1x = 21

Solving for variable 'x'.

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

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

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

Combine like terms: 21 + -12 = 9
1x = 9

Divide each side by '1'.
x = 9

Simplifying
x = 9

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