0.66(6y-18)+0.75(8y+32)=-18

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Solution for 0.66(6y-18)+0.75(8y+32)=-18 equation: 


Simplifying
0.66(6y + -18) + 0.75(8y + 32) = -18

Reorder the terms:
0.66(-18 + 6y) + 0.75(8y + 32) = -18
(-18 * 0.66 + 6y * 0.66) + 0.75(8y + 32) = -18
(-11.88 + 3.96y) + 0.75(8y + 32) = -18

Reorder the terms:
-11.88 + 3.96y + 0.75(32 + 8y) = -18
-11.88 + 3.96y + (32 * 0.75 + 8y * 0.75) = -18
-11.88 + 3.96y + (24 + 6y) = -18

Reorder the terms:
-11.88 + 24 + 3.96y + 6y = -18

Combine like terms: -11.88 + 24 = 12.12
12.12 + 3.96y + 6y = -18

Combine like terms: 3.96y + 6y = 9.96y
12.12 + 9.96y = -18

Solving
12.12 + 9.96y = -18

Solving for variable 'y'.

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

Add '-12.12' to each side of the equation.
12.12 + -12.12 + 9.96y = -18 + -12.12

Combine like terms: 12.12 + -12.12 = 0.00
0.00 + 9.96y = -18 + -12.12
9.96y = -18 + -12.12

Combine like terms: -18 + -12.12 = -30.12
9.96y = -30.12

Divide each side by '9.96'.
y = -3.024096386

Simplifying
y = -3.024096386

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