Question

I've been struggling with this question all day yesterday! Please help me!



Combine like terms to simplify the expression:

7x + 3y – 2 + 6x – 1 – y2

A.
–y2 + 3y + 13x – 3

B.
–2y3 + 13x – 3

C.
–3y3 + 13x2 – 3

D.
–y2 + 3y + 42x2 –3

Answer 1

you just have to arrange them first into unknowns and numbers:
-y²+3y+7x+6x-2-1

then just add or subtract those with the same unknowns or numbers:
-y²+7y+13x-3

so it's a :)

Answer 2

thanx

Answer 3

oh by the way, if the unknowns have an exponent, you can't combine it with those without even though the letters are the same :3