5x+21y=-15

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Solution for 5x+21y=-15 equation: 


Simplifying
5x + 21y = -15

Solving
5x + 21y = -15

Solving for variable 'x'.

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

Add '-21y' to each side of the equation.
5x + 21y + -21y = -15 + -21y

Combine like terms: 21y + -21y = 0
5x + 0 = -15 + -21y
5x = -15 + -21y

Divide each side by '5'.
x = -3 + -4.2y

Simplifying
x = -3 + -4.2y

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