5x+4y=77

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Solution for 5x+4y=77 equation: 


Simplifying
5x + 4y = 77

Solving
5x + 4y = 77

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 = 77 + -4y

Combine like terms: 4y + -4y = 0
5x + 0 = 77 + -4y
5x = 77 + -4y

Divide each side by '5'.
x = 15.4 + -0.8y

Simplifying
x = 15.4 + -0.8y

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