Question 374124
y=x+1
y=-2x-2
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x+1 = -2x-2 =y
x+3x=-2-1
4x=-3
/4
x= -3/4
plug value of x in y=x+1
y=-3/4 +1
y =1/4
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3x-5y=1
2x+5y =9

add both equations
3x+2x=10
5x=10
/5
x=2
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plug value of x in  2x+5y=9
4+5y=9
5y=9-4
5y=5
/5
y =1

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