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If 3(x - y) = 27 and 3(x + y) = 243, then x is equal to: A. 0 B. 2 C. 4 D. 6

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45
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Maths teacher

X= 45
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Headstart to assured 95+ score in math

45
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Headstart to assured 95+ score in math

X=45 y=36
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Tutor

none of the above.
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Home Tutor

None of the answers given are correct. In faact x = 45 is the correct solution of the given equations.
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Math Educator for Std.11th ,12th , Engineering Entrance and Degree Level with 11+ Years Experience

3x - 3y = 27 , 3x + 3y = 243 adding both equations, we get 6x = 270 so x = 270 / 6 = 45 x = 45
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Math Educator for Std.11th ,12th , Engineering Entrance and Degree Level with 11+ Years Experience

put a option E.) none of the above mr. srikanth
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Teaching is my passion!!!!

45
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Maths teacher from 8 years

x=45 & y=36
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Related Questions

If log 27 = 1.431, then the value of log 9 is: A. 0.934 B. 0.945 C. 0.954 D. 0.958
First,rewrite log 27 as 3log3 So,log3 would come out to be 0.477 Then,write log27 as log9+log3 So,log 9= log27-log3 =1.431-0.477 =0.954
Srikanth
0 0
8
Why does a swimmer push the water backwards?
According to newton's 3rd law of motion in each and every action there is an equal and opposite force. So if he push the water backwards then according to the above principle or law he will be able to move forward.
Gulfam
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