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27(x+7)=81(x-4)
X=9.31
Kechie you are wrong if you move 81x to the other side it becomes -81x and 324 is suppose to be -324 and 189 supposed to be -189 if you correct that you will get 9.83
you are even wrong, i taught the sign in negative at the 27(x+7) but the answer now is not what you have written down but 9.5

Answers

2014-01-15T18:24:50+01:00
27x + 189 = 81x - 342
27x - 81x = -342-189
-54x = -531
x=531/54
Ans: x= 9.83
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