System A:
-x+y=1
x+y=11
System B:
x+y=11
?
Which of the following shows the equation that creates a true equivalent system?
a. -2x-2y=-22
b. 2y=12
c. -x-y=-1
d. 2x+2y=12
1 answer
c. -x-y=-1
-x+y=1
x+y=11
System B:
x+y=11
?
Which of the following shows the equation that creates a true equivalent system?
a. -2x-2y=-22
b. 2y=12
c. -x-y=-1
d. 2x+2y=12
1 answer