0.4(-70+.09y)-.04y=4

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Solution for 0.4(-70+.09y)-.04y=4 equation:


Simplifying
0.4(-70 + 0.09y) + -0.04y = 4
(-70 * 0.4 + 0.09y * 0.4) + -0.04y = 4
(-28 + 0.036y) + -0.04y = 4

Combine like terms: 0.036y + -0.04y = -0.004y
-28 + -0.004y = 4

Solving
-28 + -0.004y = 4

Solving for variable 'y'.

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

Add '28' to each side of the equation.
-28 + 28 + -0.004y = 4 + 28

Combine like terms: -28 + 28 = 0
0 + -0.004y = 4 + 28
-0.004y = 4 + 28

Combine like terms: 4 + 28 = 32
-0.004y = 32

Divide each side by '-0.004'.
y = -8000

Simplifying
y = -8000

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