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Simplifying
X2 + 5(7) = 99
Multiply 5 * 7
X2 + 35 = 99
Reorder the terms:
35 + X2 = 99
Solving
35 + X2 = 99
Solving for variable 'X'.
Move all terms containing X to the left, all other terms to the right.
Add '-35' to each side of the equation.
35 + -35 + X2 = 99 + -35
Combine like terms: 35 + -35 = 0
0 + X2 = 99 + -35
X2 = 99 + -35
Combine like terms: 99 + -35 = 64
X2 = 64
Simplifying
X2 = 64
Take the square root of each side:
X = {-8, 8}
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