Question

solve this question pls ​

Answer 1

x =180-120=60

y=60 +70=130

z=180-130

=50

answer hope it helps you

Answer 2

$x + 120 = 180 \\ x = 180 - 120 = 60 \\ \\ y + 70 + x = 180 \\ y + 70 + 60 = 180 \\ y = 180 - 130 \\ y =50 \\ z = 70 + x (exterior \: angle \: property) \\ z = 70 + 60 \\ z = 130$

Hope it will help you!!!!!