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Simplifying
7x2 + 13 = 580
Reorder the terms:
13 + 7x2 = 580
Solving
13 + 7x2 = 580
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-13' to each side of the equation.
13 + -13 + 7x2 = 580 + -13
Combine like terms: 13 + -13 = 0
0 + 7x2 = 580 + -13
7x2 = 580 + -13
Combine like terms: 580 + -13 = 567
7x2 = 567
Divide each side by '7'.
x2 = 81
Simplifying
x2 = 81
Take the square root of each side:
x = {-9, 9}
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