Combine like terms: 3t + 5 (3 + t) - 2t - 4

first you will distribute the 5 to(3+t)

So it will be     3t+15+5t-2t-4

then you will add 3t and 5t and -2t together

So you get      6t+15-4

Lastly you will do 15-4

 So you get     6t+11

That's the answer     6t+11

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value