Question

please solve my questions

Answer 1

3(a-5)/4-4a=a-(a-3)/2
(3a-15-16a)/4-=(9-a+3)/2
-13a-15/4=(12-a)/2
By cross multiplication,
2(-13a-15)=4(12-a)
-26a-30=48-4a
-48-30=26a-4a
-78=22a
a=-78/22
  =-34/11


(ii)(3x+4)-(x+1)/5x-3=1/23
    (3x+4)-(x+1)=5x-3/23
    2x+3=5x-3/23
    23(2x+3)=5x-3
    46x+69=5x-3
    46x-5x=-69-3
    41x=-72
    x=-72/41