(-3x^2-8)-(5x^2+7)=

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Solution for (-3x^2-8)-(5x^2+7)= equation:


Simplifying
(-3x2 + -8) + -1(5x2 + 7) = 0

Reorder the terms:
(-8 + -3x2) + -1(5x2 + 7) = 0

Remove parenthesis around (-8 + -3x2)
-8 + -3x2 + -1(5x2 + 7) = 0

Reorder the terms:
-8 + -3x2 + -1(7 + 5x2) = 0
-8 + -3x2 + (7 * -1 + 5x2 * -1) = 0
-8 + -3x2 + (-7 + -5x2) = 0

Reorder the terms:
-8 + -7 + -3x2 + -5x2 = 0

Combine like terms: -8 + -7 = -15
-15 + -3x2 + -5x2 = 0

Combine like terms: -3x2 + -5x2 = -8x2
-15 + -8x2 = 0

Solving
-15 + -8x2 = 0

Solving for variable 'x'.

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

Add '15' to each side of the equation.
-15 + 15 + -8x2 = 0 + 15

Combine like terms: -15 + 15 = 0
0 + -8x2 = 0 + 15
-8x2 = 0 + 15

Combine like terms: 0 + 15 = 15
-8x2 = 15

Divide each side by '-8'.
x2 = -1.875

Simplifying
x2 = -1.875

Reorder the terms:
1.875 + x2 = -1.875 + 1.875

Combine like terms: -1.875 + 1.875 = 0.000
1.875 + x2 = 0.000

The solution to this equation could not be determined.

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