6(x+7)+(x-6)=78

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Solution for 6(x+7)+(x-6)=78 equation:


Simplifying
6(x + 7) + (x + -6) = 78

Reorder the terms:
6(7 + x) + (x + -6) = 78
(7 * 6 + x * 6) + (x + -6) = 78
(42 + 6x) + (x + -6) = 78

Reorder the terms:
42 + 6x + (-6 + x) = 78

Remove parenthesis around (-6 + x)
42 + 6x + -6 + x = 78

Reorder the terms:
42 + -6 + 6x + x = 78

Combine like terms: 42 + -6 = 36
36 + 6x + x = 78

Combine like terms: 6x + x = 7x
36 + 7x = 78

Solving
36 + 7x = 78

Solving for variable 'x'.

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

Add '-36' to each side of the equation.
36 + -36 + 7x = 78 + -36

Combine like terms: 36 + -36 = 0
0 + 7x = 78 + -36
7x = 78 + -36

Combine like terms: 78 + -36 = 42
7x = 42

Divide each side by '7'.
x = 6

Simplifying
x = 6

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