4(2.2d-1)-.8d=23

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Solution for 4(2.2d-1)-.8d=23 equation:


Simplifying
4(2.2d + -1) + -0.8d = 23

Reorder the terms:
4(-1 + 2.2d) + -0.8d = 23
(-1 * 4 + 2.2d * 4) + -0.8d = 23
(-4 + 8.8d) + -0.8d = 23

Combine like terms: 8.8d + -0.8d = 8d
-4 + 8d = 23

Solving
-4 + 8d = 23

Solving for variable 'd'.

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

Add '4' to each side of the equation.
-4 + 4 + 8d = 23 + 4

Combine like terms: -4 + 4 = 0
0 + 8d = 23 + 4
8d = 23 + 4

Combine like terms: 23 + 4 = 27
8d = 27

Divide each side by '8'.
d = 3.375

Simplifying
d = 3.375

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