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Simplifying
5x2 + -12 = 168
Reorder the terms:
-12 + 5x2 = 168
Solving
-12 + 5x2 = 168
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '12' to each side of the equation.
-12 + 12 + 5x2 = 168 + 12
Combine like terms: -12 + 12 = 0
0 + 5x2 = 168 + 12
5x2 = 168 + 12
Combine like terms: 168 + 12 = 180
5x2 = 180
Divide each side by '5'.
x2 = 36
Simplifying
x2 = 36
Take the square root of each side:
x = {-6, 6}
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