4X+9=5X-15+7X

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Solution for 4X+9=5X-15+7X equation:


Simplifying
4X + 9 = 5X + -15 + 7X

Reorder the terms:
9 + 4X = 5X + -15 + 7X

Reorder the terms:
9 + 4X = -15 + 5X + 7X

Combine like terms: 5X + 7X = 12X
9 + 4X = -15 + 12X

Solving
9 + 4X = -15 + 12X

Solving for variable 'X'.

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

Add '-12X' to each side of the equation.
9 + 4X + -12X = -15 + 12X + -12X

Combine like terms: 4X + -12X = -8X
9 + -8X = -15 + 12X + -12X

Combine like terms: 12X + -12X = 0
9 + -8X = -15 + 0
9 + -8X = -15

Add '-9' to each side of the equation.
9 + -9 + -8X = -15 + -9

Combine like terms: 9 + -9 = 0
0 + -8X = -15 + -9
-8X = -15 + -9

Combine like terms: -15 + -9 = -24
-8X = -24

Divide each side by '-8'.
X = 3

Simplifying
X = 3

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