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Simplifying
7x2 + -23 = 103
Reorder the terms:
-23 + 7x2 = 103
Solving
-23 + 7x2 = 103
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '23' to each side of the equation.
-23 + 23 + 7x2 = 103 + 23
Combine like terms: -23 + 23 = 0
0 + 7x2 = 103 + 23
7x2 = 103 + 23
Combine like terms: 103 + 23 = 126
7x2 = 126
Divide each side by '7'.
x2 = 18
Simplifying
x2 = 18
Take the square root of each side:
x = {-4.242640687, 4.242640687}
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