y+0.4=0.8(y-2)

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Solution for y+0.4=0.8(y-2) equation:


Simplifying
y + 0.4 = 0.8(y + -2)

Reorder the terms:
0.4 + y = 0.8(y + -2)

Reorder the terms:
0.4 + y = 0.8(-2 + y)
0.4 + y = (-2 * 0.8 + y * 0.8)
0.4 + y = (-1.6 + 0.8y)

Solving
0.4 + y = -1.6 + 0.8y

Solving for variable 'y'.

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

Add '-0.8y' to each side of the equation.
0.4 + y + -0.8y = -1.6 + 0.8y + -0.8y

Combine like terms: y + -0.8y = 0.2y
0.4 + 0.2y = -1.6 + 0.8y + -0.8y

Combine like terms: 0.8y + -0.8y = 0.0
0.4 + 0.2y = -1.6 + 0.0
0.4 + 0.2y = -1.6

Add '-0.4' to each side of the equation.
0.4 + -0.4 + 0.2y = -1.6 + -0.4

Combine like terms: 0.4 + -0.4 = 0.0
0.0 + 0.2y = -1.6 + -0.4
0.2y = -1.6 + -0.4

Combine like terms: -1.6 + -0.4 = -2
0.2y = -2

Divide each side by '0.2'.
y = -10

Simplifying
y = -10

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