3(y+5)+5(y-4)+7=

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Solution for 3(y+5)+5(y-4)+7= equation:


Simplifying
3(y + 5) + 5(y + -4) + 7 = 0

Reorder the terms:
3(5 + y) + 5(y + -4) + 7 = 0
(5 * 3 + y * 3) + 5(y + -4) + 7 = 0
(15 + 3y) + 5(y + -4) + 7 = 0

Reorder the terms:
15 + 3y + 5(-4 + y) + 7 = 0
15 + 3y + (-4 * 5 + y * 5) + 7 = 0
15 + 3y + (-20 + 5y) + 7 = 0

Reorder the terms:
15 + -20 + 7 + 3y + 5y = 0

Combine like terms: 15 + -20 = -5
-5 + 7 + 3y + 5y = 0

Combine like terms: -5 + 7 = 2
2 + 3y + 5y = 0

Combine like terms: 3y + 5y = 8y
2 + 8y = 0

Solving
2 + 8y = 0

Solving for variable 'y'.

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

Add '-2' to each side of the equation.
2 + -2 + 8y = 0 + -2

Combine like terms: 2 + -2 = 0
0 + 8y = 0 + -2
8y = 0 + -2

Combine like terms: 0 + -2 = -2
8y = -2

Divide each side by '8'.
y = -0.25

Simplifying
y = -0.25

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