1/2 (3m-2) = 1/3 (m+1) berpakah nilai m?

Bab Aljabar
Matematika SMP Kelas VII

(1/2) (3m - 2) = (1/3) (m + 1)
3 (3m - 2) = 2 (m + 1)
9m - 6 = 2m + 2
9m - 2m = 2 + 6
7m = 8
m = 8/7

1/2(3m-2) = 1/3(m+1)
3/2m - 1 = 1/3m + 1/3
3/2m - 1/3m = 1 + 1/3
9/6m - 2/6m = 4/3
7/6m = 4/3
m = 4/3 × 6/7
m = 24/21
m = 8/7