Answer:
I know for sure that 3 is and ik the very last one is
Step-by-step explanation:
a + 11=15 would make a equal to 4 bc you would subtract 11 from both sides
I'm not sure about the second one but I think a would equal 1/8
3 obviously equals 8 cuz u subtract 15 from both sides
the 4th onei think is 6 I can't remember what 42 divided by 7 is rn so buut I think it's 6
and the last one is also 8
