3x+21-2y=3

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Solution for 3x+21-2y=3 equation:


Simplifying
3x + 21 + -2y = 3

Reorder the terms:
21 + 3x + -2y = 3

Solving
21 + 3x + -2y = 3

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 + -2y = 3 + -21

Reorder the terms:
21 + -21 + 3x + -2y = 3 + -21

Combine like terms: 21 + -21 = 0
0 + 3x + -2y = 3 + -21
3x + -2y = 3 + -21

Combine like terms: 3 + -21 = -18
3x + -2y = -18

Add '2y' to each side of the equation.
3x + -2y + 2y = -18 + 2y

Combine like terms: -2y + 2y = 0
3x + 0 = -18 + 2y
3x = -18 + 2y

Divide each side by '3'.
x = -6 + 0.6666666667y

Simplifying
x = -6 + 0.6666666667y

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