What x what gives me 42 but when you add it it gives me 14

I think it's prime. I's not very sure but i tried all of the factors of 42 that might add up to or subtract to 14 but none came up that i saw. Sorry

I'll do the first one for you. it isn't very hard at all.on number one, you have (50 × 3), which equals 150, and (3 × 3), which equals 9. after you establish that, you add 150 and 9 together. so, (150 + 9) equals 159.this means that 53 × 3 = 159.