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Simplifying
138 = 0.006A2 + -0.02 + 120
Reorder the terms:
138 = -0.02 + 120 + 0.006A2
Combine like terms: -0.02 + 120 = 119.98
138 = 119.98 + 0.006A2
Solving
138 = 119.98 + 0.006A2
Solving for variable 'A'.
Move all terms containing A to the left, all other terms to the right.
Add '-0.006A2' to each side of the equation.
138 + -0.006A2 = 119.98 + 0.006A2 + -0.006A2
Combine like terms: 0.006A2 + -0.006A2 = 0.000
138 + -0.006A2 = 119.98 + 0.000
138 + -0.006A2 = 119.98
Add '-138' to each side of the equation.
138 + -138 + -0.006A2 = 119.98 + -138
Combine like terms: 138 + -138 = 0
0 + -0.006A2 = 119.98 + -138
-0.006A2 = 119.98 + -138
Combine like terms: 119.98 + -138 = -18.02
-0.006A2 = -18.02
Divide each side by '-0.006'.
A2 = 3003.333333
Simplifying
A2 = 3003.333333
Take the square root of each side:
A = {-54.802676331, 54.802676331}
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