Question

the opposite side of a parallelogram are 2x,+10 and 5x-20 find the length of the side of the parallelogram represented by 4x-1​

Answer 1

39

Explanation:

5x-20=2x+10 (opposite sides of parallelogram are equal)

5x-2x=10+20

3x=30

x=30/3

x=10

Now putting the value of x in 4x-1, we get

(4×10)-1

= 40-1

= 39