SOLUTION: Question: If a = 2b+c and b=3c+d , find a in terms of c and d .
How is this worked out please ? how do you do subject of the formula with 2 equations ?
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Question 1200571: Question: If a = 2b+c and b=3c+d , find a in terms of c and d .
How is this worked out please ? how do you do subject of the formula with 2 equations ?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
If a = 2b+c and b=3c+d , find a in terms of c and d .
substitute (3c+d) for b in the first equation
a = 2(3c+d) + c
distribute 2
a = 6c + 2d + c
a = 7c + 2d
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