21x-42y=

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Solution for 21x-42y= equation:


Simplifying
21x + -42y = 0

Solving
21x + -42y = 0

Solving for variable 'x'.

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

Add '42y' to each side of the equation.
21x + -42y + 42y = 0 + 42y

Combine like terms: -42y + 42y = 0
21x + 0 = 0 + 42y
21x = 0 + 42y
Remove the zero:
21x = 42y

Divide each side by '21'.
x = 2y

Simplifying
x = 2y

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