3(5+x)=18

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Solution for 3(5+x)=18 equation: 


Simplifying
3(5 + x) = 18
(5 * 3 + x * 3) = 18
(15 + 3x) = 18

Solving
15 + 3x = 18

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + 3x = 18 + -15

Combine like terms: 15 + -15 = 0
0 + 3x = 18 + -15
3x = 18 + -15

Combine like terms: 18 + -15 = 3
3x = 3

Divide each side by '3'.
x = 1

Simplifying
x = 1

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