3x+9=10x-8

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Solution for 3x+9=10x-8 equation:


Simplifying
3x + 9 = 10x + -8

Reorder the terms:
9 + 3x = 10x + -8

Reorder the terms:
9 + 3x = -8 + 10x

Solving
9 + 3x = -8 + 10x

Solving for variable 'x'.

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

Add '-10x' to each side of the equation.
9 + 3x + -10x = -8 + 10x + -10x

Combine like terms: 3x + -10x = -7x
9 + -7x = -8 + 10x + -10x

Combine like terms: 10x + -10x = 0
9 + -7x = -8 + 0
9 + -7x = -8

Add '-9' to each side of the equation.
9 + -9 + -7x = -8 + -9

Combine like terms: 9 + -9 = 0
0 + -7x = -8 + -9
-7x = -8 + -9

Combine like terms: -8 + -9 = -17
-7x = -17

Divide each side by '-7'.
x = 2.428571429

Simplifying
x = 2.428571429

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