84-(6x+15)=6(x+5)+x

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Solution for 84-(6x+15)=6(x+5)+x equation:


Simplifying
84 + -1(6x + 15) = 6(x + 5) + x

Reorder the terms:
84 + -1(15 + 6x) = 6(x + 5) + x
84 + (15 * -1 + 6x * -1) = 6(x + 5) + x
84 + (-15 + -6x) = 6(x + 5) + x

Combine like terms: 84 + -15 = 69
69 + -6x = 6(x + 5) + x

Reorder the terms:
69 + -6x = 6(5 + x) + x
69 + -6x = (5 * 6 + x * 6) + x
69 + -6x = (30 + 6x) + x

Combine like terms: 6x + x = 7x
69 + -6x = 30 + 7x

Solving
69 + -6x = 30 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
69 + -6x + -7x = 30 + 7x + -7x

Combine like terms: -6x + -7x = -13x
69 + -13x = 30 + 7x + -7x

Combine like terms: 7x + -7x = 0
69 + -13x = 30 + 0
69 + -13x = 30

Add '-69' to each side of the equation.
69 + -69 + -13x = 30 + -69

Combine like terms: 69 + -69 = 0
0 + -13x = 30 + -69
-13x = 30 + -69

Combine like terms: 30 + -69 = -39
-13x = -39

Divide each side by '-13'.
x = 3

Simplifying
x = 3

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