Question

Nancy spent half of her allowance going to the movies. She washed the family car and earned 7 dollars. What is her weekly allowance if she ended with 17 dollars

Answer 1

$20

Explanation:

X= Nancy’s allowance

17=1/2x + 7

Subtract 7 from each side

(10)=(1/2x)

Multiply 2 on each side

Cancel out the 2 in 1/2 and the 2 you multiplied on the right side

X=$20

Answer 2

(17-7)*2=weekly allowance
so her weekly allowance is 20