Question

Jika 2 1/4 × n - [ 1 1/2 + 3/4 ] = 3 makan nilai "n" adalah...
(yg bs jwb sy follow, tolong jwb dgn wajar, makasih ya.) ​

Answer 1

jwb

2 1/4 = 9/4 (campuran ke biasa)

1 1/2 = 3/2

2 1/4 x n - 1 1/2 + 3/4 = 3

9/4 x n - 3/2 + 3/4 = 3

9/4 x n - 15/8 = 3

9/4 x n = 3 + 15/8

9/4 x n = 39/8

n = 39/8 : 9/4

= 39/8 x 4/9

= 13/8

nilai n = 13/8 (1 5/8)