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12bluestone
12bluestone
30.10.2020 • 
Mathematics

If y = -7 when x=-21, what is the value of x when y = 9? Oa. y = $x; x = 27
Ob.y=-x; x =-27
Oc. y = 3x; x = 3
Od. y = {x; x = 3


If y = -7 when x=-21, what is the value of x when y = 9? Oa. y = $x; x = 27 Ob.y=-x; x =-27 Oc. y

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