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Simplifying
7 = 0.25d2
Solving
7 = 0.25d2
Solving for variable 'd'.
Move all terms containing d to the left, all other terms to the right.
Add '-0.25d2' to each side of the equation.
7 + -0.25d2 = 0.25d2 + -0.25d2
Combine like terms: 0.25d2 + -0.25d2 = 0.00
7 + -0.25d2 = 0.00
Add '-7' to each side of the equation.
7 + -7 + -0.25d2 = 0.00 + -7
Combine like terms: 7 + -7 = 0
0 + -0.25d2 = 0.00 + -7
-0.25d2 = 0.00 + -7
Combine like terms: 0.00 + -7 = -7
-0.25d2 = -7
Divide each side by '-0.25'.
d2 = 28
Simplifying
d2 = 28
Take the square root of each side:
d = {-5.291502622, 5.291502622}
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