# Question #e874b

##### 1 Answer

x=4 and y=1

#### Explanation:

(1)

(2)

Multiplying equations (2) with 5,we have

(3)

Adding equations (1) and (3),

Substituting

For graphical approach,

a linear equation of the form

The solution for two linear equations can be found by plotting the straight lines corresponding to the two equations and finding the intersection point.

If the intersection is a unique point,the solution is unique.

If the lines do not intersect,there is no solution.

If the lines coincide,the solution is infinite points forming that line.

For given question,the two straight lines

graph{3x-5y=7 [-10, 10, -5, 5]}

and the line

On plotting the two lines on same graph,the intersection point turns out to be