.12(y-7)+.08y=.18y-.09(10)

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Solution for .12(y-7)+.08y=.18y-.09(10) equation:


Simplifying
0.12(y + -7) + 0.08y = 0.18y + -0.09(10)

Reorder the terms:
0.12(-7 + y) + 0.08y = 0.18y + -0.09(10)
(-7 * 0.12 + y * 0.12) + 0.08y = 0.18y + -0.09(10)
(-0.84 + 0.12y) + 0.08y = 0.18y + -0.09(10)

Combine like terms: 0.12y + 0.08y = 0.2y
-0.84 + 0.2y = 0.18y + -0.09(10)

Multiply -0.09 * 10
-0.84 + 0.2y = 0.18y + -0.9

Reorder the terms:
-0.84 + 0.2y = -0.9 + 0.18y

Solving
-0.84 + 0.2y = -0.9 + 0.18y

Solving for variable 'y'.

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

Add '-0.18y' to each side of the equation.
-0.84 + 0.2y + -0.18y = -0.9 + 0.18y + -0.18y

Combine like terms: 0.2y + -0.18y = 0.02y
-0.84 + 0.02y = -0.9 + 0.18y + -0.18y

Combine like terms: 0.18y + -0.18y = 0.00
-0.84 + 0.02y = -0.9 + 0.00
-0.84 + 0.02y = -0.9

Add '0.84' to each side of the equation.
-0.84 + 0.84 + 0.02y = -0.9 + 0.84

Combine like terms: -0.84 + 0.84 = 0.00
0.00 + 0.02y = -0.9 + 0.84
0.02y = -0.9 + 0.84

Combine like terms: -0.9 + 0.84 = -0.06
0.02y = -0.06

Divide each side by '0.02'.
y = -3

Simplifying
y = -3

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