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Mathematics 7 Online
OpenStudy (anonymous):

8^y−3=2^y

OpenStudy (anonymous):

y=0.741316

OpenStudy (anonymous):

its multiple choice its wither 4.5 -4.5 1.5 or -1.5 i don't understand how to do it tho

jimthompson5910 (jim_thompson5910):

8^(y - 3) = 2^y (2^3)^(y - 3) = 2^y 2^(3(y - 3)) = 2^y 3(y-3) = y 3y-9 = y -9 = y-3y -9 = -2y -9/(-2) = y 9/2 = y y = 9/2 y = 4.5

OpenStudy (anonymous):

either

OpenStudy (anonymous):

Thank you so much

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