Question

PLEASE HELP WILL MARK BRAINLIEST

Answer 1

Answer:

${ \rm{y = x + 4 - - - (a)}} \\ { \rm{y = 3x - 4 - - - (b)}}$

equate equation a and equation b:

${ \rm{(a) = (b)}} \\ { \rm{x + 4 = 3x - 4}} \\ \\ { \rm{3x - x = 4 + 4}} \\ \\ { \rm{2x = 8}} \\ \\ { \boxed{ \rm{x = 4}}}$

• find the value of y:

${ \rm{from \: (a) : }} \\ \\ { \rm{y = x + 4}} \\ \\ { \rm{y = 4 + 4}} \\ \\ { \boxed{ \rm{y = 8}}}$

Answer 2

Answer: (4,8)

Step-by-step explanation:

(8) = (4) + 4

8 = 8

TRUE

(8) = 3(4) - 4

8 = 12 -4

8=8

TRUE