21x+42y=63

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Solution for 21x+42y=63 equation: 


Simplifying
21x + 42y = 63

Solving
21x + 42y = 63

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 = 63 + -42y

Combine like terms: 42y + -42y = 0
21x + 0 = 63 + -42y
21x = 63 + -42y

Divide each side by '21'.
x = 3 + -2y

Simplifying
x = 3 + -2y

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