okikilyt
okikilyt okikilyt
  • 04-03-2021
  • Mathematics
contestada

elimination method
x-5=-y
3x-10=2y​

Respuesta :

200310 200310
  • 04-03-2021

Answer:

(4,1)

Step-by-step explanation:

Multiply the first equation by -3

(x-5=-y)*-3 = -3x+15=3y

Then combine like terms with the new equation and the second equation

(-3x+15=3y) + (3x-10=2y) = 5=5y

Divide 5 by both sides

1=y

Plug in 1 for y in an equation. Doesn’t matter which one and solve

x-5=-(1)

Distribute the negative sign to the 1

x-5=-1

Add 5 to both sides

x=4

Answer Link
kica226 kica226
  • 04-03-2021

X-5= -y
-X+5=y
-4+5=y
1=y

3X-10=2(-2+5)
3X-10= -2X+10
3X+2X=10+10
5x=20
X=4
Answer Link

Otras preguntas

43.586 rounded to the nearest hundredth
A car is driven 100 kilometers in the 1st week, 130 kilometers in the 2nd week, 160 kilometers in the 3rd week, and so on. What will be the total distance trave
whats 25/7 as a mixed number?
pluralize "le frère de marie est sympathique".
write down everything you know about the equation y=mx+b. you should include what this general equation represents,as well as what each of the different letters
Which number line shows 1/3 and it's opposite
43.586 rounded to the nearest hundredth
60 is 10 times as much as what?60 is 1/10 of what?
60 is 10 times as much as what?60 is 1/10 of what?
Central Subs made 27 sandwiches using 12 pounds of turkey. How much turkey was used per sandwich?HELP ME!