Please help. solve for the variable

Mathematics

1 answer:

Elanso [62]3 years ago

4 0

Answer:

Step-by-step explanation:

12. 6(5n-3)=36n

-divide each side by six: 5n-3=6n

-subtract 5n from 6n: n= -3

14. 5b+8/3=3b

-multiply each side by 3: 5b+8=9b

-subtract 5b from 9b: 8=4b

-divide each side by 4: b=2

16. 3r+4-8r=4r-12

-subtract 3r-8r= 5r: 5r+4=4r-12

-Subtract 4r from 5r, then subtract 4 from 12

r = -16

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