Question

A father and his daughter together weigh seven times the daughter's weight x. The father weighs 180 lbs. Which equation can be used to find the daughter's weight?

A. 180-7x = x

B. x -180 = 7x

C. 180 -x = 7x

D. 180 + x = 7x
...?

Answer 1

D.180+x=7x
x-7x=-180
-6x=-180
x=180/6
x=30 pounds

180+30=210

Answer 2

Let daughter's weight = x


A father and his daughter together weigh seven times the daughter's weight = 7x

sum of the weight = 180 + x

Therefore, the expression would be 180+x = 7x, OPTION D.

Hope this answers the question. Have a nice day.