Answer:
-16
Step-by-step explanation:
Represent the number by n.
Then:
8(n + 18) = 16
Performing the indicated multiplication, we get:
8n + 144 = 16
Subtracting 144 from both sides results in 8n = -128.
Dividing both sides by 8: n = -128/8 = -16
The number was -16.
Let's find the value of x
Since the sum of internal angles of a triangle is 180°
therefore,
It's A. If U=16, 6+10=16
and if you plug in the numbers for the second equation it's 36=2(10)+16