To simplify Y plus Y, you can combine the like terms. In this case, both Y terms are like terms because they have the same variable. When you add them together, you get 2Y. Therefore, Y plus Y simplifies to 2Y.
6y
3y+2z
The answer is 5x+3y. (5 xs and 3 ys)
22 + y
2
y-5x
3(x+y)
6 - y + 5y - 6y = 6 - 2y
5x+2x-3y+y = (5+2)x+(-3+1)y = 7x - 2y
It is the same as 8y+8z
Factor out the 4. The answer is y-3/y+3