19d-9d+7=87

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Solution for 19d-9d+7=87 equation:


Simplifying
19d + -9d + 7 = 87

Reorder the terms:
7 + 19d + -9d = 87

Combine like terms: 19d + -9d = 10d
7 + 10d = 87

Solving
7 + 10d = 87

Solving for variable 'd'.

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

Add '-7' to each side of the equation.
7 + -7 + 10d = 87 + -7

Combine like terms: 7 + -7 = 0
0 + 10d = 87 + -7
10d = 87 + -7

Combine like terms: 87 + -7 = 80
10d = 80

Divide each side by '10'.
d = 8

Simplifying
d = 8

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