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Simplifying
5x2 + 42 = 62
Reorder the terms:
42 + 5x2 = 62
Solving
42 + 5x2 = 62
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-42' to each side of the equation.
42 + -42 + 5x2 = 62 + -42
Combine like terms: 42 + -42 = 0
0 + 5x2 = 62 + -42
5x2 = 62 + -42
Combine like terms: 62 + -42 = 20
5x2 = 20
Divide each side by '5'.
x2 = 4
Simplifying
x2 = 4
Take the square root of each side:
x = {-2, 2}
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