Question

Help please..

Answer 1

mesure = 180 -9x-2 =178-9x

Answer 2

You are given two angles : 4x-7 and 5x+5
Total degrees of triangle = 180
a + b + c = 180 where a,b,c are the angles of the triangle:
a= 4x-7 , b=5x+5
Find c
(4x-7) + (5x+5) + c = 180

Answer 3

A + B + C = 180

let A = 4x-7
let B = 5x + 5
we want to find C

(4x-7) + (5x+5) + C = 180

C = 180 -(4x-7) -(5x+5)

C = 180 -9x+2 = 182 -9x