7x^2-10=15

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Solution for 7x^2-10=15 equation:


Simplifying
7x2 + -10 = 15

Reorder the terms:
-10 + 7x2 = 15

Solving
-10 + 7x2 = 15

Solving for variable 'x'.

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

Add '10' to each side of the equation.
-10 + 10 + 7x2 = 15 + 10

Combine like terms: -10 + 10 = 0
0 + 7x2 = 15 + 10
7x2 = 15 + 10

Combine like terms: 15 + 10 = 25
7x2 = 25

Divide each side by '7'.
x2 = 3.571428571

Simplifying
x2 = 3.571428571

Take the square root of each side:
x = {-1.889822365, 1.889822365}

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