8. Solve: 7X+21=8x-21 – InterviewSolution

1.

8. Solve: 7X+21=8x-21

Answer»

Step-by-step explanation:

7x + 21 = 8x - 21

7x - 8x = - 21 - 21

-1x = -42

x = -42 / -1 ( CUT MINUS SIGN)

x = 42/1

x = 42

Answer :- x = 42

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