(x^2+1)+(-3x^2-7)-(x^2+5)=

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Solution for (x^2+1)+(-3x^2-7)-(x^2+5)= equation: 


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

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

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

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

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

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

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

Combine like terms: 1 + -7 = -6
-6 + -5 + x2 + -3x2 + -1x2 = 0

Combine like terms: -6 + -5 = -11
-11 + x2 + -3x2 + -1x2 = 0

Combine like terms: x2 + -3x2 = -2x2
-11 + -2x2 + -1x2 = 0

Combine like terms: -2x2 + -1x2 = -3x2
-11 + -3x2 = 0

Solving
-11 + -3x2 = 0

Solving for variable 'x'.

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

Add '11' to each side of the equation.
-11 + 11 + -3x2 = 0 + 11

Combine like terms: -11 + 11 = 0
0 + -3x2 = 0 + 11
-3x2 = 0 + 11

Combine like terms: 0 + 11 = 11
-3x2 = 11

Divide each side by '-3'.
x2 = -3.666666667

Simplifying
x2 = -3.666666667

Reorder the terms:
3.666666667 + x2 = -3.666666667 + 3.666666667

Combine like terms: -3.666666667 + 3.666666667 = 0.000000000
3.666666667 + x2 = 0.000000000

The solution to this equation could not be determined.

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