3X+6=8X-9

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Solution for 3X+6=8X-9 equation:


Simplifying
3X + 6 = 8X + -9

Reorder the terms:
6 + 3X = 8X + -9

Reorder the terms:
6 + 3X = -9 + 8X

Solving
6 + 3X = -9 + 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.
6 + 3X + -8X = -9 + 8X + -8X

Combine like terms: 3X + -8X = -5X
6 + -5X = -9 + 8X + -8X

Combine like terms: 8X + -8X = 0
6 + -5X = -9 + 0
6 + -5X = -9

Add '-6' to each side of the equation.
6 + -6 + -5X = -9 + -6

Combine like terms: 6 + -6 = 0
0 + -5X = -9 + -6
-5X = -9 + -6

Combine like terms: -9 + -6 = -15
-5X = -15

Divide each side by '-5'.
X = 3

Simplifying
X = 3

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