Rob spent half of his weekly allowance on candy. To earn more money his parents let him weed the garden for $7. What is his weekly allowance if he ended with $12?

Let Robs weekly allowances be X

he spent half f it n candy so he spent X/2

he gardened for $7 extra and at the end he had $12

so to calculate his weekly allowances, we will develop the following equation

X/2 + 7=12

X/2=12-7

X/2=5

X=5x2

X=10

Rob's weekly allowance is $10