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3 years ago

7

Help me pleaseI don't know how to do this

2 answers:

Vilka [71]3 years ago

8 0

I don’t either
Can someone please teach me

Angelina_Jolie [31]3 years ago

6 0

X = 1, Y = -1

You could do substitution :
x - y = 2
x = 2 + y
———————-
5(2 + y) + y = 4
10 + 5y + y = 4
10 + 6y = 4
6y = -6
y = -1
———————-
x - (-1) = 2
x + 1 = 2
x = 1
——————————
CHECK ANSWER :
5(1) + (-1) = 4
1 - (-1) = 2

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