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Simplifying
121 = 49d2
Solving
121 = 49d2
Solving for variable 'd'.
Move all terms containing d to the left, all other terms to the right.
Add '-49d2' to each side of the equation.
121 + -49d2 = 49d2 + -49d2
Combine like terms: 49d2 + -49d2 = 0
121 + -49d2 = 0
Add '-121' to each side of the equation.
121 + -121 + -49d2 = 0 + -121
Combine like terms: 121 + -121 = 0
0 + -49d2 = 0 + -121
-49d2 = 0 + -121
Combine like terms: 0 + -121 = -121
-49d2 = -121
Divide each side by '-49'.
d2 = 2.469387755
Simplifying
d2 = 2.469387755
Take the square root of each side:
d = {-1.571428571, 1.571428571}
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