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Simplifying
7x2 + -5 = 30
Reorder the terms:
-5 + 7x2 = 30
Solving
-5 + 7x2 = 30
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 + 7x2 = 30 + 5
Combine like terms: -5 + 5 = 0
0 + 7x2 = 30 + 5
7x2 = 30 + 5
Combine like terms: 30 + 5 = 35
7x2 = 35
Divide each side by '7'.
x2 = 5
Simplifying
x2 = 5
Take the square root of each side:
x = {-2.236067978, 2.236067978}
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