Question

What expression con you substitute in the indicated equation to solve the system below?

5x+y=8
X+4y=2
A. 2-4y for x in 5x +y=8
B. 8+5x for y in 5x+y=8
C.2+4y for x in x +4y=2
D. 5+8x for y in x+4y=2

Answer 1

Looking at the first half of all the options, only x=2-4y can be derived from the original equations therefore
Final answer:
A. 2-4y for x in 5x+y=8
Hope I helped :)