5(x+6)=21

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


Simplifying
5(x + 6) = 21

Reorder the terms:
5(6 + x) = 21
(6 * 5 + x * 5) = 21
(30 + 5x) = 21

Solving
30 + 5x = 21

Solving for variable 'x'.

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

Add '-30' to each side of the equation.
30 + -30 + 5x = 21 + -30

Combine like terms: 30 + -30 = 0
0 + 5x = 21 + -30
5x = 21 + -30

Combine like terms: 21 + -30 = -9
5x = -9

Divide each side by '5'.
x = -1.8

Simplifying
x = -1.8

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