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Elimination A
Elimination B
Elimination C
Elimination
Substitution
100
2x + 3y = -12 -4x - 3y = 30
(-9,2)
100
-3x + 5y = -18 4x + 5y = -11
(1,-3)
100
-2x + 3y = 9 4x - 4y = -4
(6,7)
100
5x + 2y = 4 -4x + 3y = 6
(0,2)
100
y=x + 4 y += -2 -x
(-3,1)
200
3x + 4y = 16 -5x - 4y = -16
(0,4)
200
-3x + 5y = -8 x + 5y = -24
(-4,-4)
200
2x + y = 21 4x - 3y = 7
(7,7)
200
x + 4y = 9 -2x + 3y = -18
(9,0)
200
-3x = 4y - 47 x = -5y + 34
(9,5)
300
-x + y = -1 x + y = -3
(-1,-2)
300
5x + 4y = 20 5x + y = 20
(4,0)
300
x + 2y = 2 2x - 3y = 4
(2,0)
300
x + y = 1 4x - 5y = 4
(1,0)
300
y = 3x - 6 u = -x +2
(2,0)
400
Find the value of two numbers if their sum is 9 and their difference is 1.
5,4
400
The difference of two numbers is 1. Their sum is 15. Find the numbers.
7,8
400
x + 4y = 10 3x - 4y = 30
(10,0)
400
4x - y = -24 5x + 3y = 4
(-4, 8)
400
= 2y - 14 -2x + 5y = 37
(4,9)
500
Heather and Willie are selling fruit for a school fundraiser. Customers can buy small boxes of grapefruit and large boxes of grapefruit. Heather sold 8 small boxes of grapefruit and 1 large box of grapefruit for a total of $68. Willie sold 8 small boxes of grapefruit and 7 large boxes of grapefruit for a total of $140. What is the cost each of one small box of grapefruit and one large box of grapefruit?
7,12
500
The sum of two numbers is 10. Their difference is 2. What are the numbers?
4,6
500
The senior classes at High School A and High School B planned separate trips to the water park. The senior class at High School A rented and filled 1 van and 6 buses with 140 students. High School B rented and filled 11 vans and 12 buses with 352 students. Each van and each bus carried the same number of students. Find the number of students in each van and in each bus
(8,22)
500
Sarawong and Imani each improved their yards by planting daylilies and shrubs. They bought their supplies from the same store. Sarawong spent $112 on 8 daylilies and 8 shrubs. Imani spent $100 on 8 daylilies and 6 shrubs. What is the cost of one daylily and the cost of one shrub?
8,6
500
5x = 4y + 20 x = -2y + 18
7,11