Alyssa 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?

Alyssa's weekly allowance is $20!

Step-by-step explanation:

Read the problem and set up the following equation using X as Alyssa's weekly allowance:

X/2+7=17

1) Subtract 7 from both sides:

X/2=10

2) Multiply both sides by 2:

X=20