Question

In a parallelogram ABCD, ∠A = (2x + 10)o and ∠C = (3x – 20)o. Find the value of x

Answer 1

in a parallelogram opposite sides are equal frnd
such that
angle A = angle C
$( 2x + 10) = (3x - 20)$
$3x - 2x = 20 + 10$
$x = 30$

Answer 2

A=C opposite angles are same
2x+10=3x-20
2x-3x= - 20-10
-x = - 30
X=30