[(7.8y^4-6.1y^3+7.9y)+(1.6y^2-9)]-(6.7y^4+1.6y-8)=

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Solution for [(7.8y^4-6.1y^3+7.9y)+(1.6y^2-9)]-(6.7y^4+1.6y-8)= equation: 


Simplifying
[(7.8y4 + -6.1y3 + 7.9y) + (1.6y2 + -9)] + -1(6.7y4 + 1.6y + -8) = 0

Reorder the terms:
[(7.9y + -6.1y3 + 7.8y4) + (1.6y2 + -9)] + -1(6.7y4 + 1.6y + -8) = 0

Remove parenthesis around (7.9y + -6.1y3 + 7.8y4)
[7.9y + -6.1y3 + 7.8y4 + (1.6y2 + -9)] + -1(6.7y4 + 1.6y + -8) = 0

Reorder the terms:
[7.9y + -6.1y3 + 7.8y4 + (-9 + 1.6y2)] + -1(6.7y4 + 1.6y + -8) = 0

Remove parenthesis around (-9 + 1.6y2)
[7.9y + -6.1y3 + 7.8y4 + -9 + 1.6y2] + -1(6.7y4 + 1.6y + -8) = 0

Reorder the terms:
[-9 + 7.9y + 1.6y2 + -6.1y3 + 7.8y4] + -1(6.7y4 + 1.6y + -8) = 0

Remove brackets around [-9 + 7.9y + 1.6y2 + -6.1y3 + 7.8y4]
-9 + 7.9y + 1.6y2 + -6.1y3 + 7.8y4 + -1(6.7y4 + 1.6y + -8) = 0

Reorder the terms:
-9 + 7.9y + 1.6y2 + -6.1y3 + 7.8y4 + -1(-8 + 1.6y + 6.7y4) = 0
-9 + 7.9y + 1.6y2 + -6.1y3 + 7.8y4 + (-8 * -1 + 1.6y * -1 + 6.7y4 * -1) = 0
-9 + 7.9y + 1.6y2 + -6.1y3 + 7.8y4 + (8 + -1.6y + -6.7y4) = 0

Reorder the terms:
-9 + 8 + 7.9y + -1.6y + 1.6y2 + -6.1y3 + 7.8y4 + -6.7y4 = 0

Combine like terms: -9 + 8 = -1
-1 + 7.9y + -1.6y + 1.6y2 + -6.1y3 + 7.8y4 + -6.7y4 = 0

Combine like terms: 7.9y + -1.6y = 6.3y
-1 + 6.3y + 1.6y2 + -6.1y3 + 7.8y4 + -6.7y4 = 0

Combine like terms: 7.8y4 + -6.7y4 = 1.1y4
-1 + 6.3y + 1.6y2 + -6.1y3 + 1.1y4 = 0

Solving
-1 + 6.3y + 1.6y2 + -6.1y3 + 1.1y4 = 0

Solving for variable 'y'.

The solution to this equation could not be determined.

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