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Simplifying
5x2 + 3 = 12
Reorder the terms:
3 + 5x2 = 12
Solving
3 + 5x2 = 12
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-3' to each side of the equation.
3 + -3 + 5x2 = 12 + -3
Combine like terms: 3 + -3 = 0
0 + 5x2 = 12 + -3
5x2 = 12 + -3
Combine like terms: 12 + -3 = 9
5x2 = 9
Divide each side by '5'.
x2 = 1.8
Simplifying
x2 = 1.8
Take the square root of each side:
x = {-1.341640787, 1.341640787}
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