cccayena cccayena
  • 07-11-2021
  • Mathematics
contestada

Solve the simultaneous equations
x+y=1
2? + y = 7

Respuesta :

regina3176
regina3176 regina3176
  • 07-11-2021

Answer:

(x,y)(6,-5)

Step-by-step explanation:

given.x+y=1----(1)

2?+y=7----(11)

x+y=1

2x+y=7

x-2x+y-y=1-7

-x=-6

-x/-1=-6/-1

x=6

to substitute "x" from-----1

6+y=1

6-6+y=1-6

y=-5

•

. .(x,y)=(6,-5)

Answer Link

Otras preguntas

x - 35 > 15 pleases solve
4{[5 (x-3)+2]-3 [2 (x+5)-9]}
how did spain 's success in finding gold and land in the Americas affect other nations.
-2u/5=6 u=? whats u?????
The least common denominator of two fractions is 28. If you subtract the two denominators, their difference is 10. What are the denominators?
What would be the value of expressing something like the national debt in scientific notation? What information would be lost in such a usage? Is that important
Solve irrational equation pls
A rectangular billboard is 7 2/3 long and 4 yards wide what is the area of the billboard
what similarities do jose marti, emilio aguinaldo and francisco "pancho" villa have?
Why is HIV the most variable virus known to science?