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Mathematics, 01.12.2019 23:31 ronaldo22

1) 2x+8y=20
y=2
2x+8(2)=20

2) x=5
2x+y=10
2(5)+y=10

3) 5x-2y=3
y=2x
5x-2(2x)=3

4) 2y+x=-15
x=3y
2y+(3x)=-15

5) 4x+7y=19
y=x+9
4x+7(x+9)=19

6)y=6x+11
2y-4x+14
2(6x+11)-4x+14

7)2x-8y=6
y=-7-x
2x-8(-7-x)=6

8) x=2y-1
3x-2y=-3
3(2y-1)-2y=-3

what is the process and what x and y equal

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Answers: 1

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You know the right answer?
1) 2x+8y=20
y=2
2x+8(2)=20

2) x=5
2x+y=10
2(5)+y=10

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