1. 2(2a+4)=
2. 3a=30
3. 4a-5=15
4. 5a+2a=14
5. 15+2a=45
Jawab sekarang y soalnya bsok hari jum'at di kumpulin,,jawabnya jangan ngasal yg bener oke…haha
Tentukan nilai A
1. (2 x 2a) + (2 x 4) = 4a + 8
= 4a = -8
= a = -8/4
= a = -2
2. 3a = 30
a = 30/3
a = 10
3. 4a – 5 = 15
4a = 15 + 5
4a = 20
a = 20/4
a = 5
4. 5a + 2a = 14
7a = 14
a = 14/7
a = 2
5. 15 + 2a = 45
2a = 45-15
2a = 30
a = 30/2
a = 15