20X+10Y=90

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Solution for 20X+10Y=90 equation: 


Simplifying
20X + 10Y = 90

Solving
20X + 10Y = 90

Solving for variable 'X'.

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

Add '-10Y' to each side of the equation.
20X + 10Y + -10Y = 90 + -10Y

Combine like terms: 10Y + -10Y = 0
20X + 0 = 90 + -10Y
20X = 90 + -10Y

Divide each side by '20'.
X = 4.5 + -0.5Y

Simplifying
X = 4.5 + -0.5Y

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