3 years ago

Solve the system of linear equations by substitution. 2x-y =23 x-9 = -1

2 answers:

4 0

First find x
X-9=-1
X= 8

2(8)-y=23
16-y=23
-y=7
Y=-7

3 0

Answer:

X=8, Y=-7

Step-by-step explanation:

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