3 years ago

Solve by elimination. 2x – 1= 20 2.x + 3y = 20

Mathematics

1 answer:

avanturin [10]3 years ago

5 0

2x-1=20

2x=20/1

2x=20

x=20/2

x=10

2x+3y =20

2×10+3y=20

20+3y=20

3y=20-20

3y=0

3/0=y

y=0

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