Mathematics, 23.10.2020 01:01 cheesecake1919
Hello, I need to know how to solve the system of linear equations by substitution.
these are the two equations:
3x+y=-9
y=5x+7
for x I got -2 but im not sure if its correct.
thanks for the help!
Answers: 1
Another question on Mathematics
Mathematics, 21.06.2019 18:00
In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36
Answers: 3
Mathematics, 22.06.2019 01:00
What is the value of the discriminant, b2 ? 4ac, for the quadratic equation 0 = x2 ? 4x + 5, and what does it mean about the number of real solutions the equation has?
Answers: 3
Mathematics, 22.06.2019 01:30
Given a binomial distribution variable with n=20 and p=0.60 find the following possibilities using the binomial table a) p(x < 13) b) p x > 15) c) p(x = 17) d) p(11 < x < 14) e) p(11 < x < 14)
Answers: 3
You know the right answer?
Hello, I need to know how to solve the system of linear equations by substitution.
these are the tw...
Questions
Computers and Technology, 13.02.2020 18:46
Physics, 13.02.2020 18:46
Computers and Technology, 13.02.2020 18:46
Mathematics, 13.02.2020 18:46
Biology, 13.02.2020 18:46
Business, 13.02.2020 18:46
