francisbelpereor1mdj francisbelpereor1mdj
  • 22-08-2017
  • Mathematics
contestada

solve the system using substitution 5y-x=-5 7y-x=-23

Respuesta :

sss333111 sss333111
  • 22-08-2017

5y-x= -5      7y-x= -23

x=5y+5

7y-(5y+5)= -23

7y-5y-5= -23

2y= -23+5

2y= -18

y= -9


x= 5y+5

x= (5*-9)+5

x= -45+5

x= -40

Answer Link

Otras preguntas

Given the function f(x) = −5x2 − x + 20, find f(3).
how to find time In flight
What is the sume of the first 5 prime numbers? -18 -11 -17 -28
For any two nonzero integers, the product and quotient have the same sign. True or False
A n-sided polygon has interior angles of which 4 of them are of sizes 125。, 220。, 40。and 295。 and the remaining are of sizes 20。each. How many sides does the po
k(3)=13(3)−2 solve for k(3)
3.06 rounded to the nearest tenth
Solve for j. 9j-8=8+9
what is 5/16 as a percent
what is the value of current when the voltage is 8 volts