3y+4(y-5)=15

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Solution for 3y+4(y-5)=15 equation:


Simplifying
3y + 4(y + -5) = 15

Reorder the terms:
3y + 4(-5 + y) = 15
3y + (-5 * 4 + y * 4) = 15
3y + (-20 + 4y) = 15

Reorder the terms:
-20 + 3y + 4y = 15

Combine like terms: 3y + 4y = 7y
-20 + 7y = 15

Solving
-20 + 7y = 15

Solving for variable 'y'.

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

Add '20' to each side of the equation.
-20 + 20 + 7y = 15 + 20

Combine like terms: -20 + 20 = 0
0 + 7y = 15 + 20
7y = 15 + 20

Combine like terms: 15 + 20 = 35
7y = 35

Divide each side by '7'.
y = 5

Simplifying
y = 5

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