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anonymous
 one year ago
solve the equation. check for extraneous solutions. will fan and medal
anonymous
 one year ago
solve the equation. check for extraneous solutions. will fan and medal

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[9\left 98x \right=2x+3\]

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1well, you will get two results: \(9\left 98x \right=2x+3\) \(9(98x )=2x+3\) OR \(9(98x )=2x3\)

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1solve each case individually.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i dont know where to start. will you walk me through it?

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1well, expand the right side in case 1

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1I mean the left side (not the right side)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0would you move the x to the left side first?

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1\(9(98x )=2x+3\) \(9\cdot99\cdot8x =2x+3\) \(8172x =2x+3\)

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1So in case two you would have the same, but the right side would be 2x3

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1Solve for each: \(8172x =2x+3\) \(8172x =2x3\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0x would go on the left side?

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1you can add 72x to both sides in case 2 and case 1

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0leaving us with 81=74x+3

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1two cases: \(8172x =2x+3\) \(8172x+72x =2x+72x+3\) \(81=74x+3\) right!

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1then subtract 3 from both sides.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what about in the second case?

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1Now in case 2: \(8172x =2x3\)

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1you also add 72x to both sides, THEN, add 3 to both sides

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1oh the first one is incorrect, and this one too

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1when in case one you have: 78=74x you divide by 74 on both sides, and thus x=78/74 (not 74/78)

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1And in case two you made the same mistake

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so it would be 84/70?

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1Yes, for case 2.

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1And they are not extraneous.

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1let me say correctly what would have been extraneous:

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1Any xsolution, in this case, that is equal to \(C\) that satisfies: \(C<2/3\)

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1because if x is less than 2/3 then 2x+3 is negative, and absolute value can NOT e equal to negative (since absolute value is really a distance)
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