2*x^2+4-7*x^2=0

Solution for 2*x^2+4-7*x^2=0 equation:

Simplifying
2x2 + 4 + -7x2 = 0

Reorder the terms:
4 + 2x2 + -7x2 = 0

Combine like terms: 2x2 + -7x2 = -5x2
4 + -5x2 = 0

Solving
4 + -5x2 = 0

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + -5x2 = 0 + -4

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

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

Divide each side by '-5'.
x2 = 0.8

Simplifying
x2 = 0.8

Take the square root of each side:
x = {-0.894427191, 0.894427191}