yoliec15 yoliec15

25-10-2018
Mathematics

contestada

what value of x makes this equation true x over 3 mines 3 equal x over 9 plus 3

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wegnerkolmp2741o wegnerkolmp2741o

25-10-2018

x/3-3 =x/9+3

add 3 to each side

x/3 = x/9 +6

subtract x/9 from each side

x/3 -x/9 = 6

get a common denominator

3/3*x/3 -x/9 = 6

3x/9 -x/9 =6

2x/9 =6

multiply each side by 9/2

x = 54/2

x=27

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