Question

No. 27, 28 kak tolong dngan caranya . makasih kk

Answer 1

27. a = b
      4a + 3b = 4b + 3b
                  = 7b

28. a x b = 12
      1 x 12
      2 x 6
      3 x 4
a+b-1 = max
1+12-1 = 12 (max)
2+6-1 = 7
3+4-1 = 6