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telo118 [61]
3 years ago
10

6 times a larger number (so 6y) is equal (=) to the sum of a snaller number and 18 (x+18)

Mathematics
2 answers:
yan [13]3 years ago
6 0
6y = x + 18
2y = x + 6         subtract :-

4y = 12
y = 3

substitute y=3 into second equation:-
6 = x + 6
so x =  0

solution is x=0.y=3
joja [24]3 years ago
6 0
I'm not sure what techniques you've been looking at to solve a system like this, but substitution would be a good one to use.  Solve one of the equations for one of the variables (pick an easy one).  How about using the first equation and solving for x:
6y = x + 18
x = 6y - 18
Now, plug in the expression for x into the other equation:
2y - (6y - 18) = 6
Solve that for y, then use the answer to find x.

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