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

What is the main idea of wizard of oz?
what is .02439 repeating as a fraction
How do I do slope intercept for y=3x-4
Identity true statements about quadratic function y = ax^{2} +bx+c, where a =/= 0. (1) It reaches either maximum or minimum at the vertex. (2) Its domain consis
If S is between R and T, RT=24, RS=x^2+8, and ST= 3x+6 how to find the value of X and if S is the midpoint or not (please show how you got the answer)
The biologist discovered that from 1988 to 1993, the average beak size declined to pre-1981 levels. The reversal in beak size from 1988 to 1993 was most likely
determine the part of speech in the sentence: at what time did you stop by?
Need help to Write 4.01 as a percent
What is an odd three-digit number that is divisible by a perfect square and 47 ?
How do you solve / figure 8 x 51 (Distributive property)