0.20(y-7)+0.08y=0.18y-2.1

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Solution for 0.20(y-7)+0.08y=0.18y-2.1 equation: 


Simplifying
0.20(y + -7) + 0.08y = 0.18y + -2.1

Reorder the terms:
0.20(-7 + y) + 0.08y = 0.18y + -2.1
(-7 * 0.20 + y * 0.20) + 0.08y = 0.18y + -2.1
(-1.4 + 0.20y) + 0.08y = 0.18y + -2.1

Combine like terms: 0.20y + 0.08y = 0.28y
-1.4 + 0.28y = 0.18y + -2.1

Reorder the terms:
-1.4 + 0.28y = -2.1 + 0.18y

Solving
-1.4 + 0.28y = -2.1 + 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.
-1.4 + 0.28y + -0.18y = -2.1 + 0.18y + -0.18y

Combine like terms: 0.28y + -0.18y = 0.1y
-1.4 + 0.1y = -2.1 + 0.18y + -0.18y

Combine like terms: 0.18y + -0.18y = 0.00
-1.4 + 0.1y = -2.1 + 0.00
-1.4 + 0.1y = -2.1

Add '1.4' to each side of the equation.
-1.4 + 1.4 + 0.1y = -2.1 + 1.4

Combine like terms: -1.4 + 1.4 = 0.0
0.0 + 0.1y = -2.1 + 1.4
0.1y = -2.1 + 1.4

Combine like terms: -2.1 + 1.4 = -0.7
0.1y = -0.7

Divide each side by '0.1'.
y = -7

Simplifying
y = -7

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