Question

Solve the equation 8x+21=x+7​

Answer 1

Step-by-step explanation:

8X + 21 = X + 7

8X -X = 7 - 21

7X = -14

X = -14/7

X = -2

Answer 2

Subtract 21 from both the sides of the question

8x+21–21=x+7–21

8x=x–14

8x–x=x–14–x

7x=–14

7x/7 = –14/7

x = –12

Solution