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Aleonysh [2.5K]
3 years ago
13

Solve the equation.9d + 2d + 3d - 4 = 5d​

Mathematics
1 answer:
Julli [10]3 years ago
7 0

Answer:

d = 4/9

Step-by-step explanation:

9d+2d+3d-4=5d\\ 14d-4=5d\\ 14d=5d+4\\ 9d=4\\ d=\frac{4}{9}      

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side note: 1 & 3/4 = 1.75

=======================================

Part B

Take the result from part A, and multiply it with 60

So we'll have 60 times 1&3/4 on the left side on the first line, then 60*(1+3/4) on the right side of this same line.

The rest of the lines look like this

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60 + 180/4

60 + 45

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