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Simplifying
a2 + 3 = 28
Reorder the terms:
3 + a2 = 28
Solving
3 + a2 = 28
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Add '-3' to each side of the equation.
3 + -3 + a2 = 28 + -3
Combine like terms: 3 + -3 = 0
0 + a2 = 28 + -3
a2 = 28 + -3
Combine like terms: 28 + -3 = 25
a2 = 25
Simplifying
a2 = 25
Take the square root of each side:
a = {-5, 5}
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