0.3y^2+0.5y^2-0.4y^2=

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Solution for 0.3y^2+0.5y^2-0.4y^2= equation: 


Simplifying
0.3y2 + 0.5y2 + -0.4y2 = 0

Combine like terms: 0.3y2 + 0.5y2 = 0.8y2
0.8y2 + -0.4y2 = 0

Combine like terms: 0.8y2 + -0.4y2 = 0.4y2
0.4y2 = 0

Solving
0.4y2 = 0

Solving for variable 'y'.

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

Divide each side by '0.4'.
y2 = 0

Simplifying
y2 = 0

Take the square root of each side:
y = {0}

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