15X+21=12x-7

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Solution for 15X+21=12x-7 equation:


Simplifying
15X + 21 = 12x + -7

Reorder the terms:
21 + 15X = 12x + -7

Reorder the terms:
21 + 15X = -7 + 12x

Solving
21 + 15X = -7 + 12x

Solving for variable 'X'.

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

Add '-21' to each side of the equation.
21 + -21 + 15X = -7 + -21 + 12x

Combine like terms: 21 + -21 = 0
0 + 15X = -7 + -21 + 12x
15X = -7 + -21 + 12x

Combine like terms: -7 + -21 = -28
15X = -28 + 12x

Divide each side by '15'.
X = -1.866666667 + 0.8x

Simplifying
X = -1.866666667 + 0.8x

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