21(x+y)=

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Solution for 21(x+y)= equation: 


Simplifying
21(x + y) = 0
(x * 21 + y * 21) = 0
(21x + 21y) = 0

Solving
21x + 21y = 0

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.
21x + 21y + -21y = 0 + -21y

Combine like terms: 21y + -21y = 0
21x + 0 = 0 + -21y
21x = 0 + -21y
Remove the zero:
21x = -21y

Divide each side by '21'.
x = -1y

Simplifying
x = -1y

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