12+5(d+9)=77

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Solution for 12+5(d+9)=77 equation:


Simplifying
12 + 5(d + 9) = 77

Reorder the terms:
12 + 5(9 + d) = 77
12 + (9 * 5 + d * 5) = 77
12 + (45 + 5d) = 77

Combine like terms: 12 + 45 = 57
57 + 5d = 77

Solving
57 + 5d = 77

Solving for variable 'd'.

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

Add '-57' to each side of the equation.
57 + -57 + 5d = 77 + -57

Combine like terms: 57 + -57 = 0
0 + 5d = 77 + -57
5d = 77 + -57

Combine like terms: 77 + -57 = 20
5d = 20

Divide each side by '5'.
d = 4

Simplifying
d = 4

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