6y+3x-21=0

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Solution for 6y+3x-21=0 equation:


Simplifying
6y + 3x + -21 = 0

Reorder the terms:
-21 + 3x + 6y = 0

Solving
-21 + 3x + 6y = 0

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 3x + 21 + 6y = 0 + 21

Reorder the terms:
-21 + 21 + 3x + 6y = 0 + 21

Combine like terms: -21 + 21 = 0
0 + 3x + 6y = 0 + 21
3x + 6y = 0 + 21

Combine like terms: 0 + 21 = 21
3x + 6y = 21

Add '-6y' to each side of the equation.
3x + 6y + -6y = 21 + -6y

Combine like terms: 6y + -6y = 0
3x + 0 = 21 + -6y
3x = 21 + -6y

Divide each side by '3'.
x = 7 + -2y

Simplifying
x = 7 + -2y

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