Question

me ajudem

d)b+3b/2 -1=b/4-3 ?

Answer 1

b + 3b - 1 = b - 3
       2          4 
-------------------------------------------------
mmc (2,4) = 4

2,4: 2
1,2: 2
1,1   = 2.2 = 4
---------------------------------------------
4b + 2.3b - 4.1 = b - 12
            4               4

4b + 6b - 4 = b - 12
10b - 4 = b - 12
10b - b = - 12 + 4
9b = - 8
b = - 8
        9