Question 311871
A= 5x+2 and Angle B= x+4
5x+2+x+4=90
6x+6=90
6x=90-6
6x=84
x=84/6
x=14 degrees.
a=5*14+2=72 degrees.
b=14+4=18 degrees.
Proof:
72+18=90
90=90