Question

2y+3x=180 and 2y+x=100 how to solve this

Answer 1

Just subtract both the equation
2y+3x=180
-2y-x=-100
We get is 2x=80 then x comes out as 40
Substituting the value above
2y+40=100
2y=60
y= 30

Answer 2

Hi,

Your answer is x=40
y=30

The simple step is to subtract the given both equations. and while subtraction signs get altered.
Then y variable gets cancelled.
Then simplify, you get the answer.


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