Answer :

Xhade
2 / 3 ( c - 18 ) = 17 
multiplying 2 / 3 to the value in bracket
2 c / 3 - 36 / 3 = 7 
adding 36/3 on other side
2 c / 3 = 7 + 36 / 3 
by taking L.C.M
2 c / 3 = 21 /3 + 36 / 3
2c / 3 = 21 + 36 / 3
2 c / 3 = 57 /3 
multiplying 3 on other side
2 c= 57 / 3 ×3
3 will be canceled
2c = 57
dividing 2 on other side
c = 57 / 2
c = 28.5 answer...

(2/3)*(c-18)=7 (Multiply terms on both sides of equation by 3)

2(c-18)=21

2c-36=21

2c=57

c=57/2

c=28.5

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