If 7x=497x=49, what is xx?

8 votes
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Manish Kumar asked 08-Dec-2017 in Math by Manish Kumar

If 7x=497x=49, what is xx?

1 Answer

2 votes
Pawan Shukla answered 08-Dec-2017 by Pawan Shukla
Simplifying
7 + -1x = 49 + -1x
Add 'x' to each side of the equation.
7 + -1x + x = 49 + -1x + x
Combine like terms: -1x + x = 0
7 + 0 = 49 + -1x + x
7 = 49 + -1x + x
Combine like terms: -1x + x = 0
7 = 49 + 0
7 = 49
Solving
7 = 49