Sy=-2x + 4
2x + y =4
give the number of solutions

 Infinitely many solutions like 0=0

Step-by-step explanation:

y+2x=4

Step: Solve y =−2x + 4 for y:

Step: Substitute −2x + 4 for y in 2x + y= 4:

2x +y = 4

2x -2x + 4 = 4

4=4 (Simplify both sides of the equation)

4−4 = 4−4 (Add -4 to both sides)

0=0

since we know that the two functions are equal, f (x) = g

(x), therefore when we equate the two equations the result should be similar to

3x = x – 4:

a. f(x) = 3x, g(x) = x – 4

equating the two functions:

3x = x – 4             (correct)

so we now got our answer (a)

i believe b is the answer