Solve this system of linear equation the x- and y-value with a comma. 18x+13y=60 6x+2y=6
2 answers:
Answer:
18x + 13y = 60
6x + 2y = 6 ---> 6x = -2y +6 ---> 18x = -6y+18
Substitution
(-6y +18)+13y =60
-18 -18
--------------------------
7y = 42 so y=6
Then, 6x + 2(6) =6, which you will get x = -1
(-1, 6)
Answer:
The solution is (-1, 6).
Step-by-step explanation:
Rewrite 18x+13y=60 6x+2y=6 as
18x+13y=60
6x+2y=6
and then mult. the 2nd equation by -3:
18x+13y=60
-18x - 6y= -18
Sum up the two equations:
18x+13y=60
-18x - 6y= -18
------------------
7y = 42, so y = 6.
Subbing 6 for y in the first equation results in:
18x + 13(6) = 60, which can be reduced to 3x + 13 = 10
Then 3x = -3, and x = -1.
The solution is (-1, 6).
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