3(7)+2y=13

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Solution for 3(7)+2y=13 equation: 


Simplifying
3(7) + 2y = 13

Multiply 3 * 7
21 + 2y = 13

Solving
21 + 2y = 13

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 = 13 + -21

Combine like terms: 21 + -21 = 0
0 + 2y = 13 + -21
2y = 13 + -21

Combine like terms: 13 + -21 = -8
2y = -8

Divide each side by '2'.
y = -4

Simplifying
y = -4

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