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lutik1710 [3]
3 years ago
7

Solve the system of linear equations by substitution: x+y=27, y=x+9

Mathematics
1 answer:
blondinia [14]3 years ago
3 0

Answer:

you answer will be x=9 , y=18

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MArishka [77]

Answer: 1. x= -12           2. x= 12

Step-by-step explanation:

1. 5(+3)=−45

5x+15−15=−45−15

5x= -60

5x/5 = -60/5

x = -60/5

x= -12

2. 1x/2−4=2

x/2 -4=22−4+4=2+4

/2=6

2⋅2=2⋅6

x=2⋅6

x= 12

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Step-by-step explanation:

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Check the picture below.

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