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Simplifying
12x2 + 19 = 21
Reorder the terms:
19 + 12x2 = 21
Solving
19 + 12x2 = 21
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-19' to each side of the equation.
19 + -19 + 12x2 = 21 + -19
Combine like terms: 19 + -19 = 0
0 + 12x2 = 21 + -19
12x2 = 21 + -19
Combine like terms: 21 + -19 = 2
12x2 = 2
Divide each side by '12'.
x2 = 0.1666666667
Simplifying
x2 = 0.1666666667
Take the square root of each side:
x = {-0.408248291, 0.408248291}
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