Answer:
x = 6.6 repeating 7
Explanation:
subtract 5 on both sides
ur left with 3x = 20
divide by 3 on both sides
1. x= 20/3 or 6.6666 repeating
2. x=3
3. a=39
1. subtract 25 by 5 to get 20, then divide 20 by 3 to get x
2. divide 7 by 21 to get x
3. add 8 to 31 to get a equals 39
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