21d+0.7=7

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Solution for 21d+0.7=7 equation: 


Simplifying
21d + 0.7 = 7

Reorder the terms:
0.7 + 21d = 7

Solving
0.7 + 21d = 7

Solving for variable 'd'.

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

Add '-0.7' to each side of the equation.
0.7 + -0.7 + 21d = 7 + -0.7

Combine like terms: 0.7 + -0.7 = 0.0
0.0 + 21d = 7 + -0.7
21d = 7 + -0.7

Combine like terms: 7 + -0.7 = 6.3
21d = 6.3

Divide each side by '21'.
d = 0.3

Simplifying
d = 0.3

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