84=2x+7x-6

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Solution for 84=2x+7x-6 equation:


Simplifying
84 = 2x + 7x + -6

Reorder the terms:
84 = -6 + 2x + 7x

Combine like terms: 2x + 7x = 9x
84 = -6 + 9x

Solving
84 = -6 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
84 + -9x = -6 + 9x + -9x

Combine like terms: 9x + -9x = 0
84 + -9x = -6 + 0
84 + -9x = -6

Add '-84' to each side of the equation.
84 + -84 + -9x = -6 + -84

Combine like terms: 84 + -84 = 0
0 + -9x = -6 + -84
-9x = -6 + -84

Combine like terms: -6 + -84 = -90
-9x = -90

Divide each side by '-9'.
x = 10

Simplifying
x = 10

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