3X-Ay=-20

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Solution for 3X-Ay=-20 equation: 


Simplifying
3X + -1Ay = -20

Solving
3X + -1yA = -20

Solving for variable 'X'.

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

Add 'yA' to each side of the equation.
3X + -1yA + yA = -20 + yA

Combine like terms: -1yA + yA = 0
3X + 0 = -20 + yA
3X = -20 + yA

Divide each side by '3'.
X = -6.666666667 + 0.3333333333yA

Simplifying
X = -6.666666667 + 0.3333333333yA

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