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Molly123
Group Title
Please explain how to solve one absolute value equation by writing it as two equations.
 one year ago
 one year ago
Molly123 Group Title
Please explain how to solve one absolute value equation by writing it as two equations.
 one year ago
 one year ago

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LogicalApple Group TitleBest ResponseYou've already chosen the best response.1
Well we know that an absolute value will always return an answer that is nonnegative. x = x if x >= 0, x if x < 0 For example, y = 5x  3. If 5x  3 >= 0 then 5x >= 3, and x >= 3/5. So whenever x >= 3/5, then y = 5x  3. Otherwise y = (5x 3). You can solve these by setting up two equations. One equation equal to whatever is inside the absolute value function. And another equation equal to the negative of that. If y = 5x  3 then y = 5x  3 or y = 5x + 3. A working example: 3x  5 = 7 This means 3x  5 = 7 or (3x  5) = 7 Solve each equation separately. 3x  5 = 7 3x = 12 x = 4 (3x  5) = 7 3x  5 = 7 3x = 2 x = 2/3 x = 4 or 2/3
 one year ago
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