Yes all the points lay in the line.
Insert the x coordinate into x giving you your y
Answer:
22
Step-by-step explanation:
The abs of y is 29 because 29 is positive
51 - 29 = 22
First day : 30+20y
Second day : 85 + 17y
Total: 30 + 20y + 85 + 17y This is the not simplified version.
37y+115 This is the simplified version.
Answer:
Yes, it is a solution
Step-by-step explanation:
9x+7y=-11
-2x-5y=30
substitute 5 for x and -8 for y and test:
9(5)+7(-8)=-11
45-56=-11 , this is true
-2(5)-5(-8)=30
-10+40=30 , this is true also
The commutative property, because you are simply moving the terms around without actually changing the overall value.