Answer:
x=31
Step-by-step explanation:
2x+4x-6=180
6x=180+6
6x=186
x = 31
2x and 4x - 6 are alternate angles and supplementary, sum to 180°, then
2x + 4x - 6 = 180
6x - 6 = 180 ( add 6 to both sides )
6x = 186 ( divide both sides by 6 )
