Question

What is the answer and can someone explain this

Answer 1

z=15

<A=168

<B=12

Explanation:

supplementary means two angles that equal 180

so we can set up an equation like this, (10z+18)+(5z-63)=180

calculate to find z

z=15

then to find the angles put 15 into the equations where z is.

10(15)+18=168

5(15)-63=12