3(-7)+5y=15

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Solution for 3(-7)+5y=15 equation: 


Simplifying
3(-7) + 5y = 15

Multiply 3 * -7
-21 + 5y = 15

Solving
-21 + 5y = 15

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 + 5y = 15 + 21

Combine like terms: -21 + 21 = 0
0 + 5y = 15 + 21
5y = 15 + 21

Combine like terms: 15 + 21 = 36
5y = 36

Divide each side by '5'.
y = 7.2

Simplifying
y = 7.2

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