Xanderr Xanderr
  • 02-10-2020
  • Mathematics
contestada

Plz help me.
Solve the system of linear equations by substitution
X+y=-7
-5x+y=5

Respuesta :

jennyzhang096 jennyzhang096
  • 05-10-2020

Answer:

x= -2 y= -5

Step-by-step explanation:

X+y=-7

x+-y-7

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

5y+35+y=5

6y+35=5

6y=5-s5

6y=-30

y=-5

-5x+(-5)=5

-5x=5+5

-5x=10

x=-2

Answer Link

Otras preguntas

Reasons for women's involvement ​
Perform the indicated operation & simplify.
The numbers in any column row or diagonal in the gird below multiply to give an answer of 1 complete the grid
arah walks 3.1 kilometers on Monday and 1.35 kilometers on Tuesday. On Wednesday she walks 2.4 times as far as she walked on the previous two days combined. How
How does an electron move from the ground state to an excited state?
sin^-1(√3-1/2√2)please give me answer ​
Which sentence in the excerpt presents a counterargument? adapted excerpt from On the Duty of Civil Disobedience by Henry David Thoreau Thoreau wrote this influ
what development led to the concept of leisure travel?
How do i know what's is the number ​
Find the sum of each of the following series: (a) 2 + 7 + 12 + ...... +92