Question

Can someone please check my work? I will become a fan and will give a medal! Please help me...
Question~
Solve the systems using the substitution method.
x - y = 0
3x + y = -4
My Answer~~
Solve one equation for either variable~
Y=0+x
In the other equation replace the variable from step 1 with what is equaled:
3x+(0+x)=-4
Solve the equation in step 2 for the other variable:
4x= -4 --- x= 4/-4 = -1
Substitute the value found in step 3 into equation in step 1:
Y=0+-1
Solve equation in step 4:
Y=-1
Write your answer as an ordered pair (x, y).
(4/-4, 0/-1)

Answer 1

@ganeshie8 @dan815 @Data_LG2 @Luigi0210 @Mehek14 @chmvijay @nincompoop @perl
Could someone please check my work? I really need the help...

Answer 2

@freckles @Zarkon @Whitemonsterbunny17 @bahrom7893

Answer 3

Your work is perfect, but your answer is confusing....

Write your answer as an ordered pair (x, y).
(4/-4, 0/-1)

What does the second line mean?

The answer should be (-1, -1) Right?

Answer 4

solved both for y
y = x
y = -4 - 3x
----------

you can say now x = -4 - 3x
and get the same thing, just another way to look at it.

Answer 5

thank you both soooo much!!! @retitEEd when you come back online could you please help me with another problem like this one? thank you again