Answer:
do a 3 by 3
Step-by-step explanation:
three across and three up
-x+7 (5x-3)=-21
-x+35x-21=-21
34x-21=-21
34x=0
The answer to find x or y is not possible
Answer:
$133
Step-by-step explanation:
Let x = amount of money she had before she spent any money.
x - 29 - 29 - 29 - 15 = 31
x - 102 = 31
x = 133
Answer: She had $133.
