Question

Tentukan hasil dari..
1. 7×-12 = 2
2. 1/2 × = 5
3. 3×-6 = 12
4. 7b - 5 = 9
5. 5m - 3 = 12-2m
6. 3(a-2) = a + 2
7. 3a - 5 = 13
8. 2×+3 = 15
9. 3×-8 = 19
10. 2(5-×) = 4(2×-5)
11. 3(4×-5) = 2(3×+8)

Tolong pakai cara ya..

Answer 1

1.) 7x-12=2
7x=12+2
7x=14
x=14/7
x=2
3.) 3x-6=12
3x=12+6
3x=18
x=18/3
x=6
4.) 7b-5=9
7b=9+5
7b=14
b=14/7
b=2
5.) 5m-3=12-2m
5m-2=12+3
3m=15
m=15/3
m=5
maaf , soalnya kebanyakan capek ngetiknya.good luck