R-7=7 add the seven from both sides, leaving the r alone, because this is what you are trying to find. Thus the answer is r=14.
I will say 36 but I also will say wait on someone else to answer
If you're asking if the two problems are the same it's true, but if you have to solve for X the answer is 0 because you subtract 6 over leaving 3X=0 then divide both sides by 3 leaving X=0. I hope I answered what you were asking.
Answer:
300
Step-by-step explanation:
100*45= 4500
15000-4500=10500
10500/35=300
(:
