An equation is shown below:
2 over 3 multiplied by x plus 8 over 3 equals 2 to the power of x
What is the solution to the equation?
A. x = –2
B. x = –1
C. x = 1
D. x = 2
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OpenStudy (mokeira):
\[\frac{ 2 }{ 3 } \times x+\frac{ 8 }{ 3 }=2^{x}\]
is this what you mean? @IndianBoyNiko
OpenStudy (anonymous):
yea
OpenStudy (anonymous):
@Mokeira
OpenStudy (anonymous):
\[\frac{ 2 }{ 3 }x+\frac{ 8 }{ 3 }=2^x\]
OpenStudy (anonymous):
@Mokeira
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OpenStudy (mokeira):
let me try
OpenStudy (anonymous):
ok
OpenStudy (mokeira):
@ganeshie8
OpenStudy (anonymous):
@Phi
OpenStudy (mokeira):
multiply everything by 3 to remove denominator
\[2x+2^{3}=(2^{x})3\]
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OpenStudy (mokeira):
that is step one lol
OpenStudy (anonymous):
I got B but I don't know if I'm right :/
OpenStudy (mokeira):
x=2...let me show you how i reasoned although i am not so sure
OpenStudy (anonymous):
okok
OpenStudy (mokeira):
it is same as
\[\frac{ 1 }{ 2x }^{-1}+2^{3}=(2^{x})3\]
x is found on 2's so we take there exponents as the bases are the same
\[-1+3=x\]
x=2
you can confirm by substituting
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