Jia writes: \begin {aligned} 5-2x&Identify the incorrect step and correct the solution. Give a value

Question

Jia writes: \begin {aligned} 5-2x&Identify the incorrect step and correct the solution. Give a value that satisfies Jia’s answer but fails the original inequality. Does the correct solution have a least real value? Does it have a least integer value? Explain.

Accepted Answer

(a) $x>-3$; (b) Counterexample $-4$; (c) No least real value; least integer $-2$.

Linear Equations and Inequalities

Linear Equations and Inequalities

Solution:

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