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mestny [16]
3 years ago
9

Need help please thanks

Mathematics
1 answer:
Marina86 [1]3 years ago
4 0

Answer:

a) t=98

b) b=32

Step-by-step explanation:

a)  4t/7  -20=36r

    r=1

    4t/7-20=36

    =36

    4t-140=252

    4y=392

     t=98

b) 2k/5=b/2-12

k=10

20/5=b/2-12

4=

8=b-24

b=32

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