7x^2-10-2x^2+5=

Solution for 7x^2-10-2x^2+5= equation:

Simplifying
7x2 + -10 + -2x2 + 5 = 0

Reorder the terms:
-10 + 5 + 7x2 + -2x2 = 0

Combine like terms: -10 + 5 = -5
-5 + 7x2 + -2x2 = 0

Combine like terms: 7x2 + -2x2 = 5x2
-5 + 5x2 = 0

Solving
-5 + 5x2 = 0

Solving for variable 'x'.

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

Add '5' to each side of the equation.
-5 + 5 + 5x2 = 0 + 5

Combine like terms: -5 + 5 = 0
0 + 5x2 = 0 + 5
5x2 = 0 + 5

Combine like terms: 0 + 5 = 5
5x2 = 5

Divide each side by '5'.
x2 = 1

Simplifying
x2 = 1

Take the square root of each side:
x = {-1, 1}