Question

ABCD is a parallelogram. solve for x
a) 21
b)20
c)10
d)5

Answer 1

X = 5

Explanation:

`6x - 10 = 3x + 5 \\ 3x = 15 \\ x = 5`

Answer 2

D)5

Explanation:

We know that opposite sides of a parallelogram are both congruent and parallel. So, we use the equation 3x+5=6x-10

Simplifying this we get x=5