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

5x + 2y = 18
3x - 7y = -22

Answer 2

right rad

Answer 3

actually, if the choices the given u can use the trials error
can u check for the last one, woulde be the solution or not ?

Answer 4

what would it be?

Answer 5

let's check it (if it is D, 2 and 4)
for the 1st equation :
5x+2y=18
5(2) + 2(4) = 18
10 + 8 = 18
RIGHT

Answer 6

for the 2nd equ.
3x-7y=-22
3(2)-7(4)=-22
6-28=-22
RIGHT TOO :)

Answer 7

so, it is D