4 years ago

Find the value of 2x-yi fx+y=8and4x-y=22

Mathematics

1 answer:

Alexeev081 [22]4 years ago

5 0

Answer:

Step-by-step explanation:

Given

$x+y=8\\ \\4x-y=22$

Add these two equations:

$x+y+4x-y=8+22\\ \\5x=30\\ \\x=6$

Substitute it into the first equation:

$6+y=8\\ \\y=8-6\\ \\y=2$

Then

$2x-y=2\cdot 6-2=12-2=10$

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Find the value of 2x-yi fx+y=8and4x-y=22​

Find the value of 2x-yi fx+y=8and4x-y=22