Find the value of x that solves the system shown below.
y = 5x
2x - y = 18

2x - 20 = 32 20 - 3x = 8 6x - 8 = 16 -13 - 3x = -10

Math i have no idea how to do a and b

Your weight on the moon is relative to your weight on earth. neil armstrong weighed 360 lbs. in his moon gear while on the earth, but on the moon he only weighed 60 lbs. how much would a 150 lb person weigh on the moon?