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Mathematics 20 Online
OpenStudy (anonymous):

I need help

OpenStudy (anonymous):

\[\frac{ 2 }{ 3 }x +1 = 27 \]

hartnn (hartnn):

Multiply 3 throughout, what u get?

OpenStudy (anonymous):

6x + 3 = 81

hartnn (hartnn):

only first term need revision: \(\huge \frac{2}{3}*3=2\) and not 6 ok?

hartnn (hartnn):

i mean 2x

OpenStudy (anonymous):

but 3 x 2 = 6

OpenStudy (anonymous):

*2/3 is ONE term

hartnn (hartnn):

YES , u are correct. but there is 3 in the denominator right? so 6/3 = 2 right??

OpenStudy (anonymous):

yes

hartnn (hartnn):

so now what u got?

OpenStudy (anonymous):

2x + 3 = 81

OpenStudy (anonymous):

3 x 1 = 3 and 3 x 27 = 81

hartnn (hartnn):

very good, u are improving :) now subtract 3 from both sides, what u get?

OpenStudy (anonymous):

0 and 79

OpenStudy (anonymous):

78

hartnn (hartnn):

right, s0 u have 2x=78 ok? now divide 2 on both sides. and tell me what u got as value of x ?

OpenStudy (anonymous):

2x / 2 =2 and 78 / 2 = 39

OpenStudy (anonymous):

so 39

hartnn (hartnn):

yes, x= 39 !! very correct :) oh @davisgurl101 , u are so good at math!

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