9+10x-5d=21

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Solution for 9+10x-5d=21 equation:


Simplifying
9 + 10x + -5d = 21

Reorder the terms:
9 + -5d + 10x = 21

Solving
9 + -5d + 10x = 21

Solving for variable 'd'.

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

Add '-9' to each side of the equation.
9 + -5d + -9 + 10x = 21 + -9

Reorder the terms:
9 + -9 + -5d + 10x = 21 + -9

Combine like terms: 9 + -9 = 0
0 + -5d + 10x = 21 + -9
-5d + 10x = 21 + -9

Combine like terms: 21 + -9 = 12
-5d + 10x = 12

Add '-10x' to each side of the equation.
-5d + 10x + -10x = 12 + -10x

Combine like terms: 10x + -10x = 0
-5d + 0 = 12 + -10x
-5d = 12 + -10x

Divide each side by '-5'.
d = -2.4 + 2x

Simplifying
d = -2.4 + 2x

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