Answer:
-2w+5z-5
Step-by-step explanation:
-8w+(-4z)+2+6w+9z-7
Step 1: Group the terms together
-8w+6w+(-4z)+9z+2-7
Step 2: Add like terms
(-8w+6w)+(-4z+9z)+(2-7)
Thats as simplified as it can get :)
just group together and seperate :)
