(6+(-0.4)y)+y=9.0

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Solution for (6+(-0.4)y)+y=9.0 equation:


Simplifying
(6 + (-0.4) * y) + y = 9.0

Remove parenthesis around (6 + -0.4y)
6 + -0.4y + y = 9.0

Combine like terms: -0.4y + y = 0.6y
6 + 0.6y = 9.0

Solving
6 + 0.6y = 9.0

Solving for variable 'y'.

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

Add '-6' to each side of the equation.
6 + -6 + 0.6y = 9.0 + -6

Combine like terms: 6 + -6 = 0
0 + 0.6y = 9.0 + -6
0.6y = 9.0 + -6

Combine like terms: 9.0 + -6 = 3
0.6y = 3

Divide each side by '0.6'.
y = 5

Simplifying
y = 5

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