alaina3792
06.09.2019 •
Mathematics
2y = x + 3
5y = x - 7
7
what is the solution set of the given system?
{f-13.-4/3}}
{(1/3,4/3)
{l-29/3.-10/3}}
{(29/3, 10/3)
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Ответ:
Solution: { -29/3 , -10/3 }
Step-by-step explanation:
2y = x + 3 > equ 1
5y = x - 7 equ 2
equ 1 - equ s > -3y = 10
y = -10/3
Put y = -10/3 in equ 1
2 * (-10/3) = x + 3
-20/3 = x + 3
(-20/3) - 3 = x
(-20/3) - (9/3) = x
(-20 - 9) / 3 =x
x = -29/3
Solution: { -29/3 , -10/3 }
Ответ:
For this case we must solve the following system of equations:
We clear "x" from the second equation:
We substitute in the first equation:
We look for the value of the variable "x":
Thus, the solution of the system is given by:
Ответ:
its b
Step-by-step explanation: