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scoray [572]
3 years ago
14

Find the solution to the system of equations by using graphing or substitution y=2x-1 and y=x+3

Mathematics
1 answer:
lorasvet [3.4K]3 years ago
7 0
Lets use substitution, since there isn't any graphing method here. 

y= x + 3
y = 2x - 1

x + 3 = 2x - 1
-x        -x

x - 1 = 3
    +1    +1

x = 4

Now solve for y

y = 2(4) - 1
y = 8 - 1
y = 7

We have the solution: (4,7)  
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