0.12(y-7)+0.04y=0.20y-0.9

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Solution for 0.12(y-7)+0.04y=0.20y-0.9 equation: 


Simplifying
0.12(y + -7) + 0.04y = 0.20y + -0.9

Reorder the terms:
0.12(-7 + y) + 0.04y = 0.20y + -0.9
(-7 * 0.12 + y * 0.12) + 0.04y = 0.20y + -0.9
(-0.84 + 0.12y) + 0.04y = 0.20y + -0.9

Combine like terms: 0.12y + 0.04y = 0.16y
-0.84 + 0.16y = 0.20y + -0.9

Reorder the terms:
-0.84 + 0.16y = -0.9 + 0.20y

Solving
-0.84 + 0.16y = -0.9 + 0.20y

Solving for variable 'y'.

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

Add '-0.20y' to each side of the equation.
-0.84 + 0.16y + -0.20y = -0.9 + 0.20y + -0.20y

Combine like terms: 0.16y + -0.20y = -0.04y
-0.84 + -0.04y = -0.9 + 0.20y + -0.20y

Combine like terms: 0.20y + -0.20y = 0.00
-0.84 + -0.04y = -0.9 + 0.00
-0.84 + -0.04y = -0.9

Add '0.84' to each side of the equation.
-0.84 + 0.84 + -0.04y = -0.9 + 0.84

Combine like terms: -0.84 + 0.84 = 0.00
0.00 + -0.04y = -0.9 + 0.84
-0.04y = -0.9 + 0.84

Combine like terms: -0.9 + 0.84 = -0.06
-0.04y = -0.06

Divide each side by '-0.04'.
y = 1.5

Simplifying
y = 1.5

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