2x-1-7=9

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Solution for 2x-1-7=9 equation: 


Simplifying
2x + -1 + -7 = 9

Reorder the terms:
-1 + -7 + 2x = 9

Combine like terms: -1 + -7 = -8
-8 + 2x = 9

Solving
-8 + 2x = 9

Solving for variable 'x'.

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

Add '8' to each side of the equation.
-8 + 8 + 2x = 9 + 8

Combine like terms: -8 + 8 = 0
0 + 2x = 9 + 8
2x = 9 + 8

Combine like terms: 9 + 8 = 17
2x = 17

Divide each side by '2'.
x = 8.5

Simplifying
x = 8.5

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