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Simplifying
25a2 + -100 = 70
Reorder the terms:
-100 + 25a2 = 70
Solving
-100 + 25a2 = 70
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Add '100' to each side of the equation.
-100 + 100 + 25a2 = 70 + 100
Combine like terms: -100 + 100 = 0
0 + 25a2 = 70 + 100
25a2 = 70 + 100
Combine like terms: 70 + 100 = 170
25a2 = 170
Divide each side by '25'.
a2 = 6.8
Simplifying
a2 = 6.8
Take the square root of each side:
a = {-2.607680962, 2.607680962}
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