3x-9x+7=-8

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Solution for 3x-9x+7=-8 equation:


Simplifying
3x + -9x + 7 = -8

Reorder the terms:
7 + 3x + -9x = -8

Combine like terms: 3x + -9x = -6x
7 + -6x = -8

Solving
7 + -6x = -8

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + -6x = -8 + -7

Combine like terms: 7 + -7 = 0
0 + -6x = -8 + -7
-6x = -8 + -7

Combine like terms: -8 + -7 = -15
-6x = -15

Divide each side by '-6'.
x = 2.5

Simplifying
x = 2.5

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