Darkwynd11791
15.12.2020 •
Mathematics
NEEDED HELP ASAP! I HAVE A EXAM TIMER!
What is the solution (a, c) to this system of linear equations?
2a – 3c = –6
a + 2c = 11
A) (- 76/7 , 17/7)
B) (3, –4)
C) (3,4)
D) (87/7 , -5/7)
Solved
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Ответ:
c
Step-by-step explanation:
2a-3c=-6
2a+4c=22
Subtract the equations to get:
-7c=-28
c=4
The only answer where c is 4 is answer c.
But if you wanted to find a you can plug in c=4 into one out of the two equations and you would get 3.
Ответ:
The answer is (0,0)