8a+3b+8a-4b=
8a+8a+3b-4b=
16a-1b=
16a-b
Hope I didn't mess up for your sake!
Answer:
just search on brainly thats what im doing are you onine schooling
Step-by-step explanation:
Hi there!
First we need to remember the following.

Now substitute both of the formulas.

Work out the parenthesis.

And finally collect terms.

~ Hope this helps you!
Answer:
wish i can help
Step-by-step explanation: