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Kay [80]
3 years ago
15

PLEASE HELP!!!! ¡¡It's for today!!

Mathematics
1 answer:
baherus [9]3 years ago
4 0

a)

3x-5y=5

4x+y=-1

3x-5y=5

20x+5y=-5

23x=0

x=0

4(0)+y=-1

0+y=-1

y=-1

Answer for A is (0,-1)

b)

y=2x-3

y=(x-3)/2

2x-3=(x-3)/2

4x-6=x-3

3x-6=-3

3x=3

x=1

y=2(1)-3

y=2-3

y=-1

Answer for B is (1,-1)

c)

3x+2y=4

5x-2y=4

8x=8

x=1

3(1)+2y=4

3+2y=4

2y=1

y=1/2

Answer for C is (1,0.5)

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