3x+7x+9=2x+6x-1

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Solution for 3x+7x+9=2x+6x-1 equation:


Simplifying
3x + 7x + 9 = 2x + 6x + -1

Reorder the terms:
9 + 3x + 7x = 2x + 6x + -1

Combine like terms: 3x + 7x = 10x
9 + 10x = 2x + 6x + -1

Reorder the terms:
9 + 10x = -1 + 2x + 6x

Combine like terms: 2x + 6x = 8x
9 + 10x = -1 + 8x

Solving
9 + 10x = -1 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
9 + 10x + -8x = -1 + 8x + -8x

Combine like terms: 10x + -8x = 2x
9 + 2x = -1 + 8x + -8x

Combine like terms: 8x + -8x = 0
9 + 2x = -1 + 0
9 + 2x = -1

Add '-9' to each side of the equation.
9 + -9 + 2x = -1 + -9

Combine like terms: 9 + -9 = 0
0 + 2x = -1 + -9
2x = -1 + -9

Combine like terms: -1 + -9 = -10
2x = -10

Divide each side by '2'.
x = -5

Simplifying
x = -5

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