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Please help with problem number 18 algebra 1 question

Please help with problem number 18 algebra 1 question-example-1

1 Answer

2 votes

Answer:

Explanation:

y2-y1/=mx2-x1

9-3/=2

5-r=6/=2

5-r which is 1 letters varibles always = 1

cross multiply

6=2(5-r)

6=10-2r

-4=-2r

r=2

so the answer is r=2

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