27
30 + ab + 6b + 5a = 5(a+6) + b(a+6) = (b+5)(a+6)
1.5
6(2a plus b)
5b - 3 - 2b = 6b - 3 3b - 3 = 6b - 3 3b - 6b = 3 - 3 b = 0
1-6b+7=14 8-6b =14 -6b =6 -b =1 b =-1
If: 6b+21 = 7b-21 Then: 6b-7b = -21-21 And: -b = -42 So: b = 42
27
6(a+b)
30 + ab + 6b + 5a = 5(a+6) + b(a+6) = (b+5)(a+6)
1.5
6(2a plus b)
It is: b = -3
2a+2b+3a+3b+a+b= 6a+6b 2a+3a+a=6a 2b+3b+b=6b
6(b - ac + b2 - bc)
5b - 3 - 2b = 6b - 3 3b - 3 = 6b - 3 3b - 6b = 3 - 3 b = 0
2a+6b