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Simplifying
3x2 + -115 = 185
Reorder the terms:
-115 + 3x2 = 185
Solving
-115 + 3x2 = 185
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '115' to each side of the equation.
-115 + 115 + 3x2 = 185 + 115
Combine like terms: -115 + 115 = 0
0 + 3x2 = 185 + 115
3x2 = 185 + 115
Combine like terms: 185 + 115 = 300
3x2 = 300
Divide each side by '3'.
x2 = 100
Simplifying
x2 = 100
Take the square root of each side:
x = {-10, 10}
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