Question

Identify which of the following are linear equations in two variable.
1) 4x+3y=12
2) 4/x+5/y=4
3) 4xy-5y-8=0
4) 3x-7y=13 ​

Answer 1

Answer:

The solution is (2,3).

Step-by-step explanation:

Given : Equations 2x+y-7=0,\ 4x-3y+1=02x+y−7=0, 4x−3y+1=0

To find : Draw the following pair of linear equation in two variables and solve?

Solution :

We put different values of x and y,

Let 2x+y-7=02x+y−7=0 ....(1)

x | 0 3.5 1 3

y | 7 0 5 1

Plot the equation, marked by red line.

Let 4x-3y+1=04x−3y+1=0 ....(1)

x | 0 -0.25 1 0.5

y | 0.3 0 1.6 1

Plot the equation, marked by blue line.

The intersection point of both the equation is the solutions of the equations i.e. (2,3).

Answer 2

Answer:

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Step-by-step explanation:

Fractional distillation is the separation of a mixture into its component parts, or fractions. Chemical compounds are separated by heating them to a temperature at which one or more fractions of the mixture will vaporize. It uses distillation to fractionate. Wikipedia