4(d-20)=1

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Solution for 4(d-20)=1 equation: 


Simplifying
4(d + -20) = 1

Reorder the terms:
4(-20 + d) = 1
(-20 * 4 + d * 4) = 1
(-80 + 4d) = 1

Solving
-80 + 4d = 1

Solving for variable 'd'.

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

Add '80' to each side of the equation.
-80 + 80 + 4d = 1 + 80

Combine like terms: -80 + 80 = 0
0 + 4d = 1 + 80
4d = 1 + 80

Combine like terms: 1 + 80 = 81
4d = 81

Divide each side by '4'.
d = 20.25

Simplifying
d = 20.25

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