Answer:
83x12
Step-by-step explanation:
51-32+14=33
33÷3=11
answer is 11
the answer is the first one I think but I'm pretty sure
=5a+7b
Expand: 5(a + 2b): 5a + 10b=5a+10b-3b<em>Add similar elements: 10b-3b=7b</em>=5a +7b