hannahprice06 hannahprice06
  • 22-03-2022
  • Mathematics
contestada

=
Solve the system of equations – 2x – 4y = -30 and -x + y = 6 by
combining the equations.

Respuesta :

ym111177
ym111177 ym111177
  • 22-03-2022

Answer:

X=1

Y=7

Step-by-step explanation:

Add both equations

(-2x) -4y +(-x) +y=-24

-3x-3y=-24. Take - 3 common factor

-3(x+y)=-24. Devide both sides by - 3

X+y=8

Adding the second equation with x+y=8

-x+y +x+y=14

2y=14

Y=7

In equation (x+y=8) substitute y with 7

X+7=8

X=1

Answer Link

Otras preguntas

A number changed to 12.6 after it was rounded. To what place was the number rounded
how are the products 2.1 times 3.2 and 21 times 32 alike and different
Jules reads that one pint is equivalent to 0.473 liters.he asks his teacher how many liters there are in a pint.His teacher responds that there are about 0.47 l
Which expression does NOT equal 4/5? 4 x 1/5 2 + 2/5 1/5 + 1/5 + 1/5 + 1/5 2 x 2/5
what is the difference between a autotroph and a heterotroph?
how are the products 2.1 times 3.2 and 21 times 32 alike and different
what is the value of current when the voltage is 8 volts
at the pet fair, Darlene's dog weighed 5 times as much as leah's dog. Together, the dogs weighed 84 pounds. how much did each dog weigh? complete the bar model.
find the slope if it exists, of the line containing the pair (3,4) and (3,-7)
the process that occurs when physical forces break rock into smaller pieces without changing the rocks chemical composition is called ?