(X+3)*3=18

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Solution for (X+3)*3=18 equation:


Simplifying
(X + 3) * 3 = 18

Reorder the terms:
(3 + X) * 3 = 18

Reorder the terms for easier multiplication:
3(3 + X) = 18
(3 * 3 + X * 3) = 18
(9 + 3X) = 18

Solving
9 + 3X = 18

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 + 3X = 18 + -9

Combine like terms: 9 + -9 = 0
0 + 3X = 18 + -9
3X = 18 + -9

Combine like terms: 18 + -9 = 9
3X = 9

Divide each side by '3'.
X = 3

Simplifying
X = 3

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