-87=-3X-15Y

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Solution for -87=-3X-15Y equation:


Simplifying
-87 = -3X + -15Y

Solving
-87 = -3X + -15Y

Solving for variable 'X'.

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

Add '3X' to each side of the equation.
-87 + 3X = -3X + 3X + -15Y

Combine like terms: -3X + 3X = 0
-87 + 3X = 0 + -15Y
-87 + 3X = -15Y

Add '87' to each side of the equation.
-87 + 87 + 3X = 87 + -15Y

Combine like terms: -87 + 87 = 0
0 + 3X = 87 + -15Y
3X = 87 + -15Y

Divide each side by '3'.
X = 29 + -5Y

Simplifying
X = 29 + -5Y

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