Given the equation 3x + 7 equals 13 which order of operations completely solve for x?

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

`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. ''.

Solve for x: 5/3 x = 20/21 it's fraction. remember to simplify your fraction