85=4X+5Y

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Solution for 85=4X+5Y equation:


Simplifying
85 = 4X + 5Y

Solving
85 = 4X + 5Y

Solving for variable 'X'.

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

Add '-4X' to each side of the equation.
85 + -4X = 4X + -4X + 5Y

Combine like terms: 4X + -4X = 0
85 + -4X = 0 + 5Y
85 + -4X = 5Y

Add '-85' to each side of the equation.
85 + -85 + -4X = -85 + 5Y

Combine like terms: 85 + -85 = 0
0 + -4X = -85 + 5Y
-4X = -85 + 5Y

Divide each side by '-4'.
X = 21.25 + -1.25Y

Simplifying
X = 21.25 + -1.25Y

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