0.8=7d+0.3

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Solution for 0.8=7d+0.3 equation:


Simplifying
0.8 = 7d + 0.3

Reorder the terms:
0.8 = 0.3 + 7d

Solving
0.8 = 0.3 + 7d

Solving for variable 'd'.

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

Add '-7d' to each side of the equation.
0.8 + -7d = 0.3 + 7d + -7d

Combine like terms: 7d + -7d = 0
0.8 + -7d = 0.3 + 0
0.8 + -7d = 0.3

Add '-0.8' to each side of the equation.
0.8 + -0.8 + -7d = 0.3 + -0.8

Combine like terms: 0.8 + -0.8 = 0.0
0.0 + -7d = 0.3 + -0.8
-7d = 0.3 + -0.8

Combine like terms: 0.3 + -0.8 = -0.5
-7d = -0.5

Divide each side by '-7'.
d = 0.07142857143

Simplifying
d = 0.07142857143

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