Two lines intersect at P

MATHEMATICS · Single correct · CBSE · Mathematics · Lines and Angles · Lines and Angles

Problem

Two lines intersect at P. One of the angles is

(3x+15)^\circ

and the angle adjacent to it is

(5x-35)^\circ

. Find the measure of the first angle. (a)

56^{\circ}

(b)

75^{\circ}

(c)

90^{\circ}

(d)

25^{\circ}