Question

find the values of x and y
and find the perimeter and area​

Answer 1

Step-by-step explanation:

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It is a rectangle

Hence, opposite sides are equal

2x-y+13=x-2y+20

2x-x-y+2y=20-13

x+y=7

x=7-y -(1)

2x+6=3y

2x-3y=-6 -(2)

substituting the value of x in equation (2)

2(7-y)-3y=-6

14-2y-3y=-6

14-5y=-6

14+6=5y

5y=20

y=20/5

y=4

Substituting the value of y in equation (1)

x=7-4

x=3

length = 2x-y+13

=2(3)-4+13

=6-4+13

=15

breadth=3y=3(4)=12

perimeter=2(l+b)

=2(15+12)

=2(27)

=54

area=l×b

=15×12

=180