Question

please solve these questions...

I don't understand it
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Answer 1

Answer:

Q1.8b-7=9

8b=9+7

8b=16

b=16/8

b=2

Q2.-4z-7= -9

-4z=-9+7

-4z=-2

z=-2/-4=2/4=1/4

z=1/4

Q3.3m+7/5m-4=13/6

do cross multiplication

6(3m+7)=13(5m-4)

18m+42=65m-52

65m-18m=-53+42

47m=-11

m=-11/47

Hope it helped u my dear frnd!!

Step-by-step explanation:

Answer 2

Answer:

Please mark me brainlist please please.................