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Simplifying
3a2 + -7 = 53
Reorder the terms:
-7 + 3a2 = 53
Solving
-7 + 3a2 = 53
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Add '7' to each side of the equation.
-7 + 7 + 3a2 = 53 + 7
Combine like terms: -7 + 7 = 0
0 + 3a2 = 53 + 7
3a2 = 53 + 7
Combine like terms: 53 + 7 = 60
3a2 = 60
Divide each side by '3'.
a2 = 20
Simplifying
a2 = 20
Take the square root of each side:
a = {-4.472135955, 4.472135955}
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