Whats the value of n if the equation is 3n-15=7n+n

n=-3

Step-by-step explanation:

So first, you have to add 7n and n

There is a implied one there

you subtract 8n to both sides, and add 15 to both sides

that leaves this:

-5n=15

you divide by -5, and you get your answer as

n=-3

Hope it helped!

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180