You were on the right track.
210 - 48 = 162
162/3 = 54 dimes
x + 3 = 6
Subtract 3 from both sides:
x = 3
Answer:
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What we Know: 3 box have some counters. There are 63 counters when they are all combined.
A and B counters = 36
The difference between A and C is 10.
Since we already know A and B we can subtract them from 63 to get C
C= 63- 36 = 27
Now we have to find A by looking for what number gives us the difference of 10 when subtracted from C.
36 = 18+ 18 or 19+ 17
18 and 18 wont work because it does not give us the difference of 10.
So A = 17 counters and B = 19 counters.
1.add 70 degree plus 78
2.when you get your sum add 31 degree
3.add the 2
4.and add the 1 and you got your answer