4+I-15I÷3
4+15÷3
4+5
9
The answer is 9
i think one which is where x=-6
i Don't know the answer is true or not..but i try my best
Answer:

Step-by-step explanation:
Let
x ----> the length of Zach's car
y ----> the length of Ginny's car
we know that
The sum of the lengths of both cars is 30 inches
so
----> equation A
Ginny's car is 2 more than 3 times the length of Zach's car
so
----> equation B
substitute equation B in equation A

Answer:
Its (10,∞)
Step-by-step explanation:
Trust me I just took the exam and got it correct