Question

7 Find the value of y in the
equation 2x+y=7, if x=2. Find x if
y=-1*​

Answer 1

Answer:

First substitute x=2 in the given equation

2×2+y=7 =>4+y=7 => y=3

Now substitute y=-1 in the equation

2x-1=7 => 2x=8 => x =4

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Answer 2

Answer:

The Given equation is 2x+y=7

now, put y=1

we get,

2x+1=7

or, 2x=7-1

or, 2x=6

or, x=6/2

or, x=3