Answer:
-2
Step-by-step explanation:
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use cross products
(3r+6) *2 = 9*(2r-4)
6r+12 = 18r-36 distribute
12 = 12 r -36 subtract 6r from each side
48 = 12r add 36 to each side
4=r divide by 12
Answer:
There's 2 solution, x= -1 and x= 2
Step-by-step explanation:
