how to solve this problem

y=3x+1

y=-3x-2
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2 Answers

line 1: y=3x+1

line 2: y=-3x-2

add line1 + line 2...2y=1-2=-1

so y=-1/2

y=3x+1=-1/2, so 3x=-3/2 & x=-1/2=y
by
3X+1=-3X-2

6X=-3

X=-1/2

Y=3*(-1/2)+1

Y=-1/2
by

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