2x+84=9x+7

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Solution for 2x+84=9x+7 equation:


Simplifying
2x + 84 = 9x + 7

Reorder the terms:
84 + 2x = 9x + 7

Reorder the terms:
84 + 2x = 7 + 9x

Solving
84 + 2x = 7 + 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 + 2x + -9x = 7 + 9x + -9x

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

Combine like terms: 9x + -9x = 0
84 + -7x = 7 + 0
84 + -7x = 7

Add '-84' to each side of the equation.
84 + -84 + -7x = 7 + -84

Combine like terms: 84 + -84 = 0
0 + -7x = 7 + -84
-7x = 7 + -84

Combine like terms: 7 + -84 = -77
-7x = -77

Divide each side by '-7'.
x = 11

Simplifying
x = 11

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