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13. Solve the inequality -24 s X-3 - 8x.O A.X< 3O B.X2-3O C.x>-9O D.X> 3Mark for review (Will be highlighted on the review

13 Solve The Inequality 24 S X3 8xO AXlt 3O BX23O Cxgt9O DXgt 3Mark For Review Will Be Highlighted On The Review class=

Sagot :

EXPLANATION:

We are given the following inequality;

[tex]-24\le x-3-8x[/tex]

To begin solving this inequality we shall first switch sides as follows;

[tex]x-3-8x\le-24[/tex]

We now combine like terms;

[tex]\begin{gathered} x-8x-3\le-24 \\ -7x-3\le-24 \end{gathered}[/tex]

Next we add 3 to both sides;

[tex]\begin{gathered} -7x-3+3\le-24+3 \\ -7x\le-21 \end{gathered}[/tex]

Next we divide both sides by -7.

At this point we must bear in mind the rule of inequalities such that when we divide by a negative number, the inequality sign flips over.

We now have;

[tex]\frac{-7x}{-7}\ge\frac{-21}{-7}[/tex][tex]x\ge3[/tex]

ANSWER:

[tex]x\ge3[/tex]