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3 years ago

What is the value of x in the equation 3x-1/9y=18 when y= 27

Mathematics

2 answers:

makkiz [27]3 years ago

6 0

Answer:

$x=7$

Step-by-step explanation:

$3x-1/9(27)=18\\3x-3=18\\3x=18+3\\3x=21\\3x/3=21/3\\x=7$

Nutka1998 [239]3 years ago

5 0

Answer:

x =7

Step-by-step explanation:

3x-1/9y=18

Add 1/9 y to each side

3x-1/9y + 1/9 y=18+ 1/9 y

3x = 18 + 1/9 y

Divide by 3

3x/3 = 18/3 + 1/9y *1/3

x = 6 + 1/27 y

Let y = 27

x= 6+ 1/27 * 27

x = 6+1

x = 7

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Vlad1618 [11]

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