3(3+2x)=(21)

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


Simplifying
3(3 + 2x) = (21)
(3 * 3 + 2x * 3) = (21)
(9 + 6x) = (21)
9 + 6x = 21

Solving
9 + 6x = 21

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 6x = 21 + -9

Combine like terms: 9 + -9 = 0
0 + 6x = 21 + -9
6x = 21 + -9

Combine like terms: 21 + -9 = 12
6x = 12

Divide each side by '6'.
x = 2

Simplifying
x = 2

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