Question

X=4 is the root of 12x+8=56

Answer 1

Answer:x=4

12x+8=56

12(4)+8=56

48+8 =56

56= 56

so x =4 is the root of 12x+8=56

Answer 2

Answer:

  x = 4

-> 12x + 8 = 56

-> 12(4) + 8 = 56 { x = 4 }

-> 48 + 8 = 56

-> 56= 56

Hence proved, x = 4 is the root of 12x + 8 = 56