Answer:
1) 9
2) 7
3) -10
4) -54
5) -64
Step-by-step explanation:
It’s just basic substitution
Hope this helps!
If you multiply 6 times 8, you will get 48 as final answer
The answer is option "3, 40".
<span>m∠cab = 2x
m∠acb = x + 30
m∠cbd = 5x − 50
Now,
</span>m∠cab + m∠acb = m∠cbd
2x+x+30 = 5x-50
2x+x-5x = -50-30
-2x = -80
x = 40
