3(7)-2y=3

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Solution for 3(7)-2y=3 equation: 


Simplifying
3(7) + -2y = 3

Multiply 3 * 7
21 + -2y = 3

Solving
21 + -2y = 3

Solving for variable 'y'.

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

Add '-21' to each side of the equation.
21 + -21 + -2y = 3 + -21

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

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

Divide each side by '-2'.
y = 9

Simplifying
y = 9

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