jordynbu
jordynbu jordynbu
  • 26-02-2019
  • Mathematics
contestada

Solve the system by elimination

x+3y=5

-x-y=-3

Respuesta :

nicholerowe2343
nicholerowe2343 nicholerowe2343
  • 26-02-2019

Answer: y = 4

               x = -7

             

Step-by-step explanation:

1.) x + 3y = 5

       -x -y=3

2.) x + 3y = 5

        - 3y  - 3y

3.) x= 5-3y

4.) -(5-3y)-y=3

5.) -5+3y-y=3

6.) 2y-5=3

7.) 2y-5=3

         +5 +5

8.) 2y=8

9.) 2y/2 = 8/2

10.) y= 8/2

11.) y=4

12.) x+3 (4)=5

13.) x+12=5

14.) x+12=5

       -12  -12

15.) x= -7

answer.) y= 4

              x= -7

Answer Link

Otras preguntas

noah is taking an online survey after answering 16 questions, he gets a message that he has completed 80% of the survey noah is taking an online survey after an
Given g(x) =3x - 7 find g(-2)
how do i find the circumphrance of a circle?
MODIFIED-BOTTOM-UP-CUT-ROD(p, n, c) to return not only the value but the actual solution, too. Hint: It is similar to how array s is maintained in EXTENDED-BOTT
Jeb bought a $5 Footlong TM. Sales tax was 8%. How much was sales tax for the sandwich The answer is 5.40 What was the total price of the sandwich including t
Please help: In Δ ABC, sin A=88, sin B=42, and a =17, find the length of b.
i don’t know how to classify polynomials
Match the following.​
Solve this perimeter equation for q in terms of P and w: P=2w+2q what is the value of q when w=4 and P=20
Estimate the amount of the tip by rounding the bill to the nearest dollar before calculating. 20% tip on a bill of $95.79 The amount of the tip is approximately