-9 + 5y - 7y + 3y = ?

− 9

Step-by-step explanation:

-9 + y

Step-by-step explanation:

For this problem, you have to combine like terms.

-9 is the only number that doesn't have a variable.

5y, -7y, 3y have all the the same variables, so we'll combine those.

5y - 7y = -2y

-2y + 3y = 1y

Solution: -9 + y

answer: 4

step-by-step explanation:

127

whether it's diameter, or radius, i believe if i remember correctly from school, every amount has to always add up to 180. so if you take 53, and starting adding, long story short, taking 127 and adding it to 53, gives you 180.