7(4d+9)=77

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Solution for 7(4d+9)=77 equation: 


Simplifying
7(4d + 9) = 77

Reorder the terms:
7(9 + 4d) = 77
(9 * 7 + 4d * 7) = 77
(63 + 28d) = 77

Solving
63 + 28d = 77

Solving for variable 'd'.

Move all terms containing d to the left, all other terms to the right.

Add '-63' to each side of the equation.
63 + -63 + 28d = 77 + -63

Combine like terms: 63 + -63 = 0
0 + 28d = 77 + -63
28d = 77 + -63

Combine like terms: 77 + -63 = 14
28d = 14

Divide each side by '28'.
d = 0.5

Simplifying
d = 0.5

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