For example:
x+2y=7
6x+7y=2
__________
x=7-2y *
6*(7-2y)+7y=2 **
__________
x=7-2y
42-12y+7y=2
__________
x=7-2y
-5y=-40
__________
x=7-2y
y=8
x=-9
Answer:
Step-by-step explanation:
A:y=3x+4
Answer:
no
Step-by-step explanation:
A linear equation is a straight line.
Answer:
Distance between the school and the theater = units
Step-by-step explanation:
Use distance formula to calculate the distance from the school (8, 7) and the theater (2, 3):
Let,
Plug in the values into the distance formula
Simplify