PLEASE HELP MEEEE ill mark brilliance!!!!
1 answer:
You might be interested in
For this case we must find the solution of the following system of equations:
If we multiply the first equation by -2 we have the following equivalent system:
If we add the equations we have:
Thus, the system has infinite solutions.
Answer:
Infinite solutions
Answer: in the image
I believe this is what you are looking for, hope this helps!
Answer:
a = ± 4
Step-by-step explanation:
Expressing the proportion in fractional form
=
( cross- multiply )
(a -1 )(a + 1) = 15 ← expand factors on left side
a² - 1 = 15 ( add 1 to both sides )
a² = 16 ( take the square root of both sides )
a = ± = ± 4