Find the value of a+b if 49 = 7a and 25-5b
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Answer:
49 = 7a
a = 49/7 = 7
49 = 25 - 5b
b = (49-25)/5
b = 24/5
a+b = 7 + 24/5
= (35+24)/5
= 59/5 = 11.8
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