Question

The sum of five times a number and twice a second number is 18, but the difference of three times the first number and seven times the second number is -22. Find the two numbers using the elimination method.
A. -2 and -4
B. -2 and 4
C. 2 and -4
D. 2 and 4

Answer 1

Start with translating this into some equations. I'll help you with the first one. The sum of five times a number (5x) , and twice a second number (2y) is 18. So, the first equations is 5x+2y=18

Answer 2

I don't understand

Answer 3

sum means plus, (+), two numbers added together. Five times a number is just what it sounds like . 5x(a number) . We just use x and y to "stand in" for numbers we dont know yet.

Answer 4

Oh i got its D

Answer 5

Yup!