90=9(d+4)

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Solution for 90=9(d+4) equation:


Simplifying
90 = 9(d + 4)

Reorder the terms:
90 = 9(4 + d)
90 = (4 * 9 + d * 9)
90 = (36 + 9d)

Solving
90 = 36 + 9d

Solving for variable 'd'.

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

Add '-9d' to each side of the equation.
90 + -9d = 36 + 9d + -9d

Combine like terms: 9d + -9d = 0
90 + -9d = 36 + 0
90 + -9d = 36

Add '-90' to each side of the equation.
90 + -90 + -9d = 36 + -90

Combine like terms: 90 + -90 = 0
0 + -9d = 36 + -90
-9d = 36 + -90

Combine like terms: 36 + -90 = -54
-9d = -54

Divide each side by '-9'.
d = 6

Simplifying
d = 6

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