2 years ago

Solve the linear equation: x-y=7 0.5x+y=5

Mathematics

1 answer:

evablogger [386]2 years ago

4 0

Add the equations.

x-y%2B0.5x%2By=7%2B5

1.5x=12

highlight%28x=8%29

Now use either equation to solve for y.

8-y=7

highlight%28y=1%29

x=8

y=1

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