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Simplifying
16x2 + 8 = 57
Reorder the terms:
8 + 16x2 = 57
Solving
8 + 16x2 = 57
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-8' to each side of the equation.
8 + -8 + 16x2 = 57 + -8
Combine like terms: 8 + -8 = 0
0 + 16x2 = 57 + -8
16x2 = 57 + -8
Combine like terms: 57 + -8 = 49
16x2 = 49
Divide each side by '16'.
x2 = 3.0625
Simplifying
x2 = 3.0625
Take the square root of each side:
x = {-1.75, 1.75}
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