3(-5)+6+5y=21

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Solution for 3(-5)+6+5y=21 equation: 


Simplifying
3(-5) + 6 + 5y = 21

Multiply 3 * -5
-15 + 6 + 5y = 21

Combine like terms: -15 + 6 = -9
-9 + 5y = 21

Solving
-9 + 5y = 21

Solving for variable 'y'.

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

Add '9' to each side of the equation.
-9 + 9 + 5y = 21 + 9

Combine like terms: -9 + 9 = 0
0 + 5y = 21 + 9
5y = 21 + 9

Combine like terms: 21 + 9 = 30
5y = 30

Divide each side by '5'.
y = 6

Simplifying
y = 6

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