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Systems of Equations - Credit Recovery
供稿人: Maher
The difference between two numbers is 9. The first number plus twice the other numberis 27. Find the two numbers.
is the smaller number
is the larger number
Solve the system of equations by graphing.
(        ,       )
y= -2x + 2

y = 7x + 11
Solve the system of equations using substitution.
(        ,        )
y = 2x

5x - y = 9
Solve the system of equations using elimination.
(        ,        )
x - 3y = 16

4x - y = 9
Solve the system of equations.
y = 2x + 1

2x - y = 3
(1, 3)
(5,  7)
Infinite Solutions
No Solution
What is the solution to the system graphed below?
(        ,        )
Solve the system of equations.
(       ,       )
x + 2y = -2

3x + 4y = 6
Rob has $1.65 in nickels and dimes. He has 25 coins
in all. How many of each kind of coin are there?
nickels

dimes
Graph 1
Graph 2
Graph 3
Graph 4
Which system of 
equations has a 
solution of (2, 2)?
Write the system of equations shown 
on the graph below.
green line:
red line:
y =        x



y =        x
(Include operation symbols/signs and nospaces)
Solve the system of equations.
4y = 2x - 8

5x - 4y = 20
(       ,       )
Solve the system of equations.
(       ,       )
y = x + 8

x + y = 2
If using elimination to solve, what should the first 
equation be multiplied by in order to eliminate x?
x - 3y = 16

4x - y = 9
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