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Simplifying
10v2 + 7 = 647
Reorder the terms:
7 + 10v2 = 647
Solving
7 + 10v2 = 647
Solving for variable 'v'.
Move all terms containing v to the left, all other terms to the right.
Add '-7' to each side of the equation.
7 + -7 + 10v2 = 647 + -7
Combine like terms: 7 + -7 = 0
0 + 10v2 = 647 + -7
10v2 = 647 + -7
Combine like terms: 647 + -7 = 640
10v2 = 640
Divide each side by '10'.
v2 = 64
Simplifying
v2 = 64
Take the square root of each side:
v = {-8, 8}
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