(6x)+(12x)+(3x+42)=180

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Solution for (6x)+(12x)+(3x+42)=180 equation:


Simplifying
(6x) + (12x) + (3x + 42) = 180

Reorder the terms:
(6x) + (12x) + (42 + 3x) = 180

Remove parenthesis around (42 + 3x)
(6x) + (12x) + 42 + 3x = 180

Reorder the terms:
42 + (6x) + (12x) + 3x = 180

Combine like terms: (6x) + (12x) = 18x
42 + 18x + 3x = 180

Combine like terms: 18x + 3x = 21x
42 + 21x = 180

Solving
42 + 21x = 180

Solving for variable 'x'.

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

Add '-42' to each side of the equation.
42 + -42 + 21x = 180 + -42

Combine like terms: 42 + -42 = 0
0 + 21x = 180 + -42
21x = 180 + -42

Combine like terms: 180 + -42 = 138
21x = 138

Divide each side by '21'.
x = 6.571428571

Simplifying
x = 6.571428571

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