x+x-2+6x=78

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Solution for x+x-2+6x=78 equation:


Simplifying
x + x + -2 + 6x = 78

Reorder the terms:
-2 + x + x + 6x = 78

Combine like terms: x + x = 2x
-2 + 2x + 6x = 78

Combine like terms: 2x + 6x = 8x
-2 + 8x = 78

Solving
-2 + 8x = 78

Solving for variable 'x'.

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

Add '2' to each side of the equation.
-2 + 2 + 8x = 78 + 2

Combine like terms: -2 + 2 = 0
0 + 8x = 78 + 2
8x = 78 + 2

Combine like terms: 78 + 2 = 80
8x = 80

Divide each side by '8'.
x = 10

Simplifying
x = 10

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