SOLUTION ;
- r = 9
SOLVING STEPS ;
- 4/9 = 8/2r
= reduce the fraction with 2
= devide the 8 and 2 number
= 8 ÷ 2
= 4
= 4/9 = 4/r
- 4/9 = 4r
= then multiply the 4 and 9
= 4 × 9
= 36
= 36 = 4r
- 36 = 4r
= then replace the 36 and 4r
= 4r = 36
- 4r = 36
= devide the both sides of the equation by 4
FINAL ANSWER
= r = 9
