3(y-4)+5(y+1)=25

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Solution for 3(y-4)+5(y+1)=25 equation:


Simplifying
3(y + -4) + 5(y + 1) = 25

Reorder the terms:
3(-4 + y) + 5(y + 1) = 25
(-4 * 3 + y * 3) + 5(y + 1) = 25
(-12 + 3y) + 5(y + 1) = 25

Reorder the terms:
-12 + 3y + 5(1 + y) = 25
-12 + 3y + (1 * 5 + y * 5) = 25
-12 + 3y + (5 + 5y) = 25

Reorder the terms:
-12 + 5 + 3y + 5y = 25

Combine like terms: -12 + 5 = -7
-7 + 3y + 5y = 25

Combine like terms: 3y + 5y = 8y
-7 + 8y = 25

Solving
-7 + 8y = 25

Solving for variable 'y'.

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

Add '7' to each side of the equation.
-7 + 7 + 8y = 25 + 7

Combine like terms: -7 + 7 = 0
0 + 8y = 25 + 7
8y = 25 + 7

Combine like terms: 25 + 7 = 32
8y = 32

Divide each side by '8'.
y = 4

Simplifying
y = 4

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