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anonymous
 one year ago
Solve1 over 25 = 5x + 4.
anonymous
 one year ago
Solve1 over 25 = 5x + 4.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1438191114060:dw

phi
 one year ago
Best ResponseYou've already chosen the best response.0do you know that 1/a can be written a^(1) ?

phi
 one year ago
Best ResponseYou've already chosen the best response.0so if we let 5^2 be "a" for the moment 1/(5^2) = (5^2)^1 \[ \frac{1}{5^2}= \left(5^2\right)^{1} \] now use the rule \[ \left(a ^b\right)^c = a^{bc} \]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0(5^2)^1=5^x+4 1=x+4

phi
 one year ago
Best ResponseYou've already chosen the best response.0the left side is not correct. the rule up above says a "power to a power" ... multiply the powers you get 5^(2) (and you really should know this: 5^(2) is the same as 1/5^2 )

phi
 one year ago
Best ResponseYou've already chosen the best response.02 = x + 4 and yes you get x= 6

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0And I do know that, I just had a brain fart
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