(12c5 - 18c3 + 9c) / (-3c) = -4c4 + 6c2 - 3
4c+2 = 3c+9 4c-3c = 9-2 c = 7
3c+6=18 3c+6-6=18-6 3c=12 3c÷3=12÷3 c=4
4a + 3c - 2b - c + a - b = 5a - 3b + 2c
The like terms are sums of b terms and c terms separately 5c+2c+3c+4b 5c +2c + 4b + 3c => 10c + 4b
It is 7 - 8c.
That's not even a question. It's only a statement that says that some number is equal to itself.
17-3= 4c+3c c=2