Question

6×n = 5×9 + 3
1/2×180 - 30 = (n+8)×5
156:4+16=n×5
1/4×(245+155)=n + 8 × 10
(480 - 210):30 = (52 + 65 ): n

Answer 1

1. 6xn = 5x9+3
   6xn = 45+3=48
     n = 48:6 = 8
2. 1/2x180-30 = (n+8)x5
   90-30 = (n+8)x5
   n+8 = 60:5 = 12
   n = 4
3. 156:4+16 = nx5
   39+16 = nx5
   n = 55:5 = 11