alfalfa93 alfalfa93
  • 22-10-2019
  • Mathematics
contestada

3. Solve these systems of equations by the substitution method.
a.
* = 3y - 7
4x + 3y = 2

Respuesta :

WaywardDelaney WaywardDelaney
  • 28-10-2019

Answer:

Y=2

X=-1

Step-by-step explanation:

In substitution method we have to put the value of one variable from first equation to the another given equation.

here equation are

x=3y-7     ......a

4x+3y=2   .......b

put the value of x from equation first into the second equation

so, 4(3y-7)+3y=2

     (12y-28)+3y=2

     15y-28=2

     15y=2+28

     15y=30

or    y=30/2=2

now put this y value in equation a

x=3(2)-7

x=6-7=-1

hence y=2 and x= -1

Answer Link

Otras preguntas

Correct answer gets Brainliest! Solve for x.
After overthrowing a monarch, the Romans established a form of government called a Republic. Which of these statements describes a key figure of a republic? A)
Express $15 for 10 gallons as a unit rate. Answers : $5, $1.50, $3 for 2, & $1000 per ton.
In your own words, what is the difference between implicit and explicit?
using the map, what number is on the state with the capital city of annapolis
please answer this question:)
The sum of two integers is 74. The larger is 26 more than twice the smaller. Find the two integers.
what has changed over Cuba
Three friends are dividing the cost of a kite equally the Kite it cost $15.75 how much will each person pay
Which statement best describes the effect of the low density of frozen water in a lake? Water in the lake freezes from the bottom up, killing all organisms. Wat