(2a^2-7)-(2a^2-4)=

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Solution for (2a^2-7)-(2a^2-4)= equation: 


Simplifying
(2a2 + -7) + -1(2a2 + -4) = 0

Reorder the terms:
(-7 + 2a2) + -1(2a2 + -4) = 0

Remove parenthesis around (-7 + 2a2)
-7 + 2a2 + -1(2a2 + -4) = 0

Reorder the terms:
-7 + 2a2 + -1(-4 + 2a2) = 0
-7 + 2a2 + (-4 * -1 + 2a2 * -1) = 0
-7 + 2a2 + (4 + -2a2) = 0

Reorder the terms:
-7 + 4 + 2a2 + -2a2 = 0

Combine like terms: -7 + 4 = -3
-3 + 2a2 + -2a2 = 0

Combine like terms: 2a2 + -2a2 = 0
-3 + 0 = 0
-3 = 0

Solving
-3 = 0

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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