icannotdomath21 icannotdomath21

21-01-2019
Mathematics

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solve y=x+3 and 2x+y=-6 by substitution

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Ronia14 Ronia14

21-01-2019

Hope this is right....

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fatimaaitlasri fatimaaitlasri

21-01-2019

Answer:

x = -3

Step-by-step explanation:

substitute y in the second equation for x + 3:

2x + (x + 3) = -6

2x + x + 3 = -6

3x + 3 = -6

-3 -3

3x = -9

/3 /3

x = -3

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