A student writes:
\begin {aligned} -2x&\leq6 \\ x&\leq-3.\end {aligned}

Question

A student writes: \begin {aligned} -2x&\leq6 \ x&\leq-3.\end {aligned} Identify and correct the error. Give one value that satisfies the student’s answer but fails the original inequality.

Accepted Answer

(a) $x\geq-3$; (b) For example, $x=-4$.

Linear Equations and Inequalities

Linear Equations and Inequalities

Solution:

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