Tell whether the ordered pair is a solution of the given system.
(1,3)
2x-3y=-7
-5x+3y=4
Yes!
100
Solve each system by substitution!
y=12-3x
y=2x-3
(3,3)
100
Solve each system by elimination!
x-3y=-1
-x+2y=-2
(8,3)
100
Classify each system. Give the number of solutions.
3x=-6y+2
2y=-x+1
consistent and dependent; infinitely many
100
Solve each system by graphing!
2/3x+y=-3
4x+y=7
(3,-5)
200
Tell whether the ordered pair is a solution of the given system.
(-2,2)
4x+3y=-2
-2x-2y=2
No!
200
Solve each system by substitution!
2x+y=-6
-5x+y=1
(-1,-4)
200
Solve each system by elimination!
-3x-y=1
5x+y=-5
(-2,5)
200
Classify each system. Give the number of solutions.
y=-4x+2
4x+y=-2
inconsistent; none
200
Solve each system by substitution!
y=-x
y=-2x-5
(-5,5)
300
Tell whether the ordered pair is a solution of the given system.
(4,-3)
-2x-3y=1
x+2y=-2
Yes!
300
Solve each system by substitution!
y=11-3x
-2x+y=1
(2,5)
300
Solve each system by elimination!
-3x-3y=3
2x+y=-4
(-3,2)
300
Classify each system. Give the number of solutions.
4x-3y=8
y=4(x+2)
consistent and independent; one solution
300
Solve each system by elimination!
-2x+5y=-1
3x+2y=11
(3,1)
400
Solve each system by graphing. Check your answer.
y=x+1
y=-2x-2
(-1,0)
400
Solve each system by substitution!
2x+3y=2
-1/2x+2y=-6
(4,-2)
400
Solve each system by elimination!
4x-3y=-1
2x-2y=-4
(5,7)
400
Classify each system. Give the number of solutions.
2y=2(4x-3)
y-1=4x
inconsistent; none
400
Classify each system and Give the number of solutions!
3y+6x=9
2(y-3)=-4x
consistent and dependent; infinitely many
500
Solve each system by graphing. Check your answer.
x=2-2y
-1=-2x-3y
(-4,3)
500
Solve each system by substitution!
3x-2y=-3
y=7-4x
(1,3)
500
Solve each system by elimination!
3x+6y=0
7x+4y=20
(4,-2)
500
Classify each system. Give the number of solutions.
3x-13=2y
-3y=2x
consistent and independent; one solution
500
Solve each system by graphing!
Banking: Christiana and Marlena opened their first first savings accounts on the same day. Christiana opened her account with $50 and plans to deposit $10 every month. Marlena opened her account with $30 and plans to deposit $15 every month. After how many months will their two accounts have the same amount of money? What will that amount be?