The largest prime factor of twelve is

Does anyone know how to do geometryme with this problem

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

`if you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain. ''.