3(5-3x)+3(6x+2)=57

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Solution for 3(5-3x)+3(6x+2)=57 equation:


Simplifying
3(5 + -3x) + 3(6x + 2) = 57
(5 * 3 + -3x * 3) + 3(6x + 2) = 57
(15 + -9x) + 3(6x + 2) = 57

Reorder the terms:
15 + -9x + 3(2 + 6x) = 57
15 + -9x + (2 * 3 + 6x * 3) = 57
15 + -9x + (6 + 18x) = 57

Reorder the terms:
15 + 6 + -9x + 18x = 57

Combine like terms: 15 + 6 = 21
21 + -9x + 18x = 57

Combine like terms: -9x + 18x = 9x
21 + 9x = 57

Solving
21 + 9x = 57

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + 9x = 57 + -21

Combine like terms: 21 + -21 = 0
0 + 9x = 57 + -21
9x = 57 + -21

Combine like terms: 57 + -21 = 36
9x = 36

Divide each side by '9'.
x = 4

Simplifying
x = 4

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