3x+7(3x-18)=138

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Solution for 3x+7(3x-18)=138 equation:


Simplifying
3x + 7(3x + -18) = 138

Reorder the terms:
3x + 7(-18 + 3x) = 138
3x + (-18 * 7 + 3x * 7) = 138
3x + (-126 + 21x) = 138

Reorder the terms:
-126 + 3x + 21x = 138

Combine like terms: 3x + 21x = 24x
-126 + 24x = 138

Solving
-126 + 24x = 138

Solving for variable 'x'.

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

Add '126' to each side of the equation.
-126 + 126 + 24x = 138 + 126

Combine like terms: -126 + 126 = 0
0 + 24x = 138 + 126
24x = 138 + 126

Combine like terms: 138 + 126 = 264
24x = 264

Divide each side by '24'.
x = 11

Simplifying
x = 11

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