Question

2a + 1 = a – 3 , tentukan nilai a
12 + 3a = 5 + 2a , tentukan nilai a
3(x + 1) = 2(x + 4) , tentukan nilai x

Answer 1

1) 2a + 1 = a-3
2a - a = -3-1
a = -4

2) 12 + 3a = 5 + 2a
3a -2a = 5-12
a = -7

3) 3(x+1) = 2(x+4)
3x + 3 = 2x + 8
3x - 2x = 8-3
x = 5

semogamembantu :)

Answer 2

1. 2a+1 = a-3
     2a-a = -3 -1
         a  = -4
2. 12+ 3a = 5 + 2a
     12-5 = 2a-3a
       7 = -a
       a= -7
3. 3(x+1) = 2(x+4)
     3x+3 = 2x + 8
           x = 5