4 years ago

Solve the systems of equation by substitution method.2x+y=13x-y=4

Mathematics

1 answer:

SCORPION-xisa [38]4 years ago

5 0

Answer:

x=1, y=-1. (1, -1).

Step-by-step explanation:

2x+y=1

3x-y=4

-------------

y=3x-4

2x+3x-4=1

5x-4=1

5x=1+4

5x=5

x=5/5

x=1

y=3(1)-4=3-4=-1

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Solve the systems of equation by substitution method.2x+y=13x-y=4​

Solve the systems of equation by substitution method.2x+y=13x-y=4