Question

Solve by systematic method and verify the solution: (a) x - 4 = 21​

Answer 1

Answer:

25

Step-by-step explanation:

x - 4 = 21

x = 21 + 4

x = 25

( I hope that you will be satisfied)

Answer 2

Answer:

X-4=21

X=21+4

x=26

Step-by-step explanation:

verification

putting x=25 in the equation

25-4=21

21=21

hence proofed