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Explain the Error in the Following Work x+4=7x+4=7 or x+4=7x=3 or x=11\begin{array} { l } | x | + 4 = 7 \\x + 4 = 7 \text { or } x + 4 = - 7 \\x = 3 \quad \text { or } \quad x = - 11\end{array}

Question 190

Essay

Explain the error in the following work. Then give the correct solution. Solve:
x+4=7x+4=7 or x+4=7x=3 or x=11\begin{array} { l } | x | + 4 = 7 \\x + 4 = 7 \text { or } x + 4 = - 7 \\x = 3 \quad \text { or } \quad x = - 11\end{array}

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The absolute value e...

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