.20(y-1)+.18y=.06y-.09(20)

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Solution for .20(y-1)+.18y=.06y-.09(20) equation:


Simplifying
0.20(y + -1) + 0.18y = 0.06y + -0.09(20)

Reorder the terms:
0.20(-1 + y) + 0.18y = 0.06y + -0.09(20)
(-1 * 0.20 + y * 0.20) + 0.18y = 0.06y + -0.09(20)
(-0.2 + 0.20y) + 0.18y = 0.06y + -0.09(20)

Combine like terms: 0.20y + 0.18y = 0.38y
-0.2 + 0.38y = 0.06y + -0.09(20)

Multiply -0.09 * 20
-0.2 + 0.38y = 0.06y + -1.8

Reorder the terms:
-0.2 + 0.38y = -1.8 + 0.06y

Solving
-0.2 + 0.38y = -1.8 + 0.06y

Solving for variable 'y'.

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

Add '-0.06y' to each side of the equation.
-0.2 + 0.38y + -0.06y = -1.8 + 0.06y + -0.06y

Combine like terms: 0.38y + -0.06y = 0.32y
-0.2 + 0.32y = -1.8 + 0.06y + -0.06y

Combine like terms: 0.06y + -0.06y = 0.00
-0.2 + 0.32y = -1.8 + 0.00
-0.2 + 0.32y = -1.8

Add '0.2' to each side of the equation.
-0.2 + 0.2 + 0.32y = -1.8 + 0.2

Combine like terms: -0.2 + 0.2 = 0.0
0.0 + 0.32y = -1.8 + 0.2
0.32y = -1.8 + 0.2

Combine like terms: -1.8 + 0.2 = -1.6
0.32y = -1.6

Divide each side by '0.32'.
y = -5

Simplifying
y = -5

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