9x+1=7x-1

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


Simplifying
9x + 1 = 7x + -1

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

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

Solving
1 + 9x = -1 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
1 + 9x + -7x = -1 + 7x + -7x

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

Combine like terms: 7x + -7x = 0
1 + 2x = -1 + 0
1 + 2x = -1

Add '-1' to each side of the equation.
1 + -1 + 2x = -1 + -1

Combine like terms: 1 + -1 = 0
0 + 2x = -1 + -1
2x = -1 + -1

Combine like terms: -1 + -1 = -2
2x = -2

Divide each side by '2'.
x = -1

Simplifying
x = -1

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