(3y^2+8y-1)-(3y^2+2)=5

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Solution for (3y^2+8y-1)-(3y^2+2)=5 equation:


Simplifying
(3y2 + 8y + -1) + -1(3y2 + 2) = 5

Reorder the terms:
(-1 + 8y + 3y2) + -1(3y2 + 2) = 5

Remove parenthesis around (-1 + 8y + 3y2)
-1 + 8y + 3y2 + -1(3y2 + 2) = 5

Reorder the terms:
-1 + 8y + 3y2 + -1(2 + 3y2) = 5
-1 + 8y + 3y2 + (2 * -1 + 3y2 * -1) = 5
-1 + 8y + 3y2 + (-2 + -3y2) = 5

Reorder the terms:
-1 + -2 + 8y + 3y2 + -3y2 = 5

Combine like terms: -1 + -2 = -3
-3 + 8y + 3y2 + -3y2 = 5

Combine like terms: 3y2 + -3y2 = 0
-3 + 8y + 0 = 5
-3 + 8y = 5

Solving
-3 + 8y = 5

Solving for variable 'y'.

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

Add '3' to each side of the equation.
-3 + 3 + 8y = 5 + 3

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

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

Divide each side by '8'.
y = 1

Simplifying
y = 1

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