35 is the answer
Explanation, the sum of interrior angme is 180degree
x+(3x+40)= 180
or, 4x= 180-40
or, x= 140÷ 4
or x = 35
10 - 2x = -30
-2x = -40
2x = 40
x = 20
Answer:
assuming you meant 6x198 do a mental sum for 6x200 (1200) then subtract 6x2(12)to give you 1188
Step-by-step explanation:
brainly.com/question/274291
Answer:
x = -10
Step-by-step explanation:
9 x -10 = -90
ok but what's the question? u gave us info but what's the question
