6a + (7b - 4a - 8b) = (6a - 4a) + (7b - 8b) = 2a - b
a + 7b + 2c
-58
It is: 7b+4b-1b = 10b when simplified
a = b + 9; 4a = 7b so 4 x (b + 9) = 7b, ie 4b + 36 = 7b so b = 12 and a = 21
6a + (7b - 4a - 8b) = (6a - 4a) + (7b - 8b) = 2a - b
2a+2a-7b+7b =4a
-7a-7b
The given expression can be simplified to: 3b-a
a + 7b + 2c
It is: 19b+7b = 26b
It is: 7b+10 simplified
(-a-7b+5)4ab
9a + 7b *remember to look and understand the letters!*
-58
8b
6a+7b