3(x-7y)=

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Solution for 3(x-7y)= equation: 


Simplifying
3(x + -7y) = 0
(x * 3 + -7y * 3) = 0
(3x + -21y) = 0

Solving
3x + -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.
3x + -21y + 21y = 0 + 21y

Combine like terms: -21y + 21y = 0
3x + 0 = 0 + 21y
3x = 0 + 21y
Remove the zero:
3x = 21y

Divide each side by '3'.
x = 7y

Simplifying
x = 7y

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