.75(12y+8)-3(4y+5)=0

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Solution for .75(12y+8)-3(4y+5)=0 equation:


Simplifying
0.75(12y + 8) + -3(4y + 5) = 0

Reorder the terms:
0.75(8 + 12y) + -3(4y + 5) = 0
(8 * 0.75 + 12y * 0.75) + -3(4y + 5) = 0
(6 + 9y) + -3(4y + 5) = 0

Reorder the terms:
6 + 9y + -3(5 + 4y) = 0
6 + 9y + (5 * -3 + 4y * -3) = 0
6 + 9y + (-15 + -12y) = 0

Reorder the terms:
6 + -15 + 9y + -12y = 0

Combine like terms: 6 + -15 = -9
-9 + 9y + -12y = 0

Combine like terms: 9y + -12y = -3y
-9 + -3y = 0

Solving
-9 + -3y = 0

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 + -3y = 0 + 9

Combine like terms: -9 + 9 = 0
0 + -3y = 0 + 9
-3y = 0 + 9

Combine like terms: 0 + 9 = 9
-3y = 9

Divide each side by '-3'.
y = -3

Simplifying
y = -3

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