5x-4y=-20*9

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Solution for 5x-4y=-20*9 equation: 


Simplifying
5x + -4y = -20 * 9

Multiply -20 * 9
5x + -4y = -180

Solving
5x + -4y = -180

Solving for variable 'x'.

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

Add '4y' to each side of the equation.
5x + -4y + 4y = -180 + 4y

Combine like terms: -4y + 4y = 0
5x + 0 = -180 + 4y
5x = -180 + 4y

Divide each side by '5'.
x = -36 + 0.8y

Simplifying
x = -36 + 0.8y

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