Question

Can anyone help me with 28, 33, and 34

Answer 1

28. -1/3=r-3/4

Move -3/4 to the other side. Sign changes from -3/4 to +3/4

-1/3+ 3/4=r-3/4+3/4

-1/3+3/4=r

Find the common denominator for both of the fractions which is 12. Multiply by 4 for -1/3. Multiply by 3 for 3/4.

-1/3(4)+3/4(3)= -4/12+9/12= 5/12

33. -5/6+c=-11/12

c=-11/12+5/6

Find the common denominator which is 12 for 5/6. Multiply by 2. 5*2=10, 6*2=12

c=-11/12+10/12=-1/12

34. s-1/9=5/18

s-1/9+1/9=5/18+1/9

Find the common denominator which is 18. Mutiply by 2 for 1/9 . 1*2=2, 9*2=18

s=5/18+2/18=7/18

Answers:

28. 5/12

33. -1/12

34. 7/18

Answer 2

C=-11/12+5/6 is the solution