3(1x+2)=21

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Solution for 3(1x+2)=21 equation: 


Simplifying
3(1x + 2) = 21

Reorder the terms:
3(2 + 1x) = 21
(2 * 3 + 1x * 3) = 21
(6 + 3x) = 21

Solving
6 + 3x = 21

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + 3x = 21 + -6

Combine like terms: 6 + -6 = 0
0 + 3x = 21 + -6
3x = 21 + -6

Combine like terms: 21 + -6 = 15
3x = 15

Divide each side by '3'.
x = 5

Simplifying
x = 5

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