Question

Need help with question please.

Answer 1

m<A + m<B +m<C = 180
6x - 1 + 20 + x + 14 = 180
7x + 33 = 180
7x = 180 -33
7x = 147
x= 147/7
x= 21

m<A = 6x - 1 = 6(21) - 1 = 125
m<C = x + 14 = 21 + 14 = 35

Answer 2

(6x-1)(x+14)=160 because b is 20 and total they equal 180 so you -14 from both sides then you have 6x-1+x=146 then you add 1 to both sides and you have 7x=147 then you divide 7 from both sides and get 21=x and then you (6(21)-1) =125 =A
((21)+14) =35 =C
hope that helps