A+7=7B-49 ; A+3=3B+9
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Answer:
In the first case
A + 7 = 7B - 49
A = 7B - 49 - 7
A = 7B - 56
In the second case
A + 3 = 3B + 9
A = 3B + 9 - 3
A = 3B + 6
Now we value of A
We can put any value of A
7B - 56 = 3B + 6
7B - 3B = 6 + 56
4B = 62
B = 62/4
B = 15.5 answer
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