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

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

anonymous · Answer

$$5a+2b =18$$$$3a-7b=-22$$
use simultaneous equations and you'll get D

anonymous · Answer

Thxs