SOLUTION: Can you pls solve for a and b. I've tried and got a= -3, and b= 10, but the answer is a=10, b=3. I do not understand how they arrived at that answer. The equations are: a -

Algebra ->  -> SOLUTION: Can you pls solve for a and b. I've tried and got a= -3, and b= 10, but the answer is a=10, b=3. I do not understand how they arrived at that answer. The equations are: a -       Log On

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 Question 131203: Can you pls solve for a and b. I've tried and got a= -3, and b= 10, but the answer is a=10, b=3. I do not understand how they arrived at that answer. The equations are: a - b = 7, and a - 4b = -7. Please solve for a and b and explain how you arrived at the answer. Thanks. The Problem was taken from The Princeton Review, Math Smart. ISBN 0-375-76216-7Answer by checkley71(8403)   (Show Source): You can put this solution on YOUR website!SORRY BUT A=10 & B=3 ARE NOT A SOLUTION. a-b=7 or a=7+b now replace a with (7+b) & solve for b. 7+b-4b=-7 -3b=-14 b=-14/-3 b=14/3 answer. a-14/3=7 a=7+14/3 a=(21+14)/3 a=35/3 answer. proof: 35/3-4(14/3)=-7 35/3-56/3=-7 -21/3=-7 -7=-7