7x-4y=-28

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Solution for 7x-4y=-28 equation: 


Simplifying
7x + -4y = -28

Solving
7x + -4y = -28

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.
7x + -4y + 4y = -28 + 4y

Combine like terms: -4y + 4y = 0
7x + 0 = -28 + 4y
7x = -28 + 4y

Divide each side by '7'.
x = -4 + 0.5714285714y

Simplifying
x = -4 + 0.5714285714y

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