Help please! I don’t have much time left to submit it

5) x=39

Step-by-step explanation:

if you see the triangle it has  two equal sides which mean is an Isosceles Triangle    so if a triangle =180

we can say that   x+x+102=108 if we solve that we got x=39

this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.