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Simplifying
5x2 + 5 = 20
Reorder the terms:
5 + 5x2 = 20
Solving
5 + 5x2 = 20
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 + 5x2 = 20 + -5
Combine like terms: 5 + -5 = 0
0 + 5x2 = 20 + -5
5x2 = 20 + -5
Combine like terms: 20 + -5 = 15
5x2 = 15
Divide each side by '5'.
x2 = 3
Simplifying
x2 = 3
Take the square root of each side:
x = {-1.732050808, 1.732050808}
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