(-2a^3+9b^2)-(-5a^3+b^2)=

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Solution for (-2a^3+9b^2)-(-5a^3+b^2)= equation: 


Simplifying
(-2a3 + 9b2) + -1(-5a3 + b2) = 0

Remove parenthesis around (-2a3 + 9b2)
-2a3 + 9b2 + -1(-5a3 + b2) = 0
-2a3 + 9b2 + (-5a3 * -1 + b2 * -1) = 0
-2a3 + 9b2 + (5a3 + -1b2) = 0

Reorder the terms:
-2a3 + 5a3 + 9b2 + -1b2 = 0

Combine like terms: -2a3 + 5a3 = 3a3
3a3 + 9b2 + -1b2 = 0

Combine like terms: 9b2 + -1b2 = 8b2
3a3 + 8b2 = 0

Solving
3a3 + 8b2 = 0

Solving for variable 'a'.

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

Add '-8b2' to each side of the equation.
3a3 + 8b2 + -8b2 = 0 + -8b2

Combine like terms: 8b2 + -8b2 = 0
3a3 + 0 = 0 + -8b2
3a3 = 0 + -8b2
Remove the zero:
3a3 = -8b2

Divide each side by '3'.
a3 = -2.666666667b2

Simplifying
a3 = -2.666666667b2

Combine like terms: -2.666666667b2 + 2.666666667b2 = 0.000000000
a3 + 2.666666667b2 = 0.000000000

The solution to this equation could not be determined.

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