szambrana
22.12.2019 •
Mathematics
Solve the system of equations algebraically. 3x-3y=9 6x-7y=5
a.many solutionsb.
(15,14)
c.no solutiond.
(16,13)
Solved
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Ответ:
6x -7y=5
We'll use substitution for x:
6(y+3) - 7y = 5
6y + 18 - 7y = 5
-y = -13
y = 13
x - 13 = 3
x = 16
Therefore the answer is (16,13). Hope I helped.
Ответ:
The ratio is 15:45 which is also 1:3