Answer:
this angle is a right angle(90°)
and one of the 2 angles is 30
3x+30=90
3x=90-30
3x=60
x=20
==> B
Answer: 70
90+20=110
180-110=70
I hope this is good enough:
Step-by-step explanation:
The two equation will intersect each other at the point which will be the solution of the given two equations , and the given equations are ,
On subtracting the given equations we have,
Put this value in any equation , we have ,
Hence the lines will Intersect at ,

<u>-5a²+13ab</u> should be subtracted.
<h3>Step-by-step explanation:-</h3>
Based on the given conditions, formulate,


Taking the coefficients or numbers, we get,

