7x^2+4=5x^2-84

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Solution for 7x^2+4=5x^2-84 equation:


Simplifying
7x2 + 4 = 5x2 + -84

Reorder the terms:
4 + 7x2 = 5x2 + -84

Reorder the terms:
4 + 7x2 = -84 + 5x2

Solving
4 + 7x2 = -84 + 5x2

Solving for variable 'x'.

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

Add '-5x2' to each side of the equation.
4 + 7x2 + -5x2 = -84 + 5x2 + -5x2

Combine like terms: 7x2 + -5x2 = 2x2
4 + 2x2 = -84 + 5x2 + -5x2

Combine like terms: 5x2 + -5x2 = 0
4 + 2x2 = -84 + 0
4 + 2x2 = -84

Add '-4' to each side of the equation.
4 + -4 + 2x2 = -84 + -4

Combine like terms: 4 + -4 = 0
0 + 2x2 = -84 + -4
2x2 = -84 + -4

Combine like terms: -84 + -4 = -88
2x2 = -88

Divide each side by '2'.
x2 = -44

Simplifying
x2 = -44

Reorder the terms:
44 + x2 = -44 + 44

Combine like terms: -44 + 44 = 0
44 + x2 = 0

The solution to this equation could not be determined.

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