1.

Find the graphical solution of 4x -5 < 7,x is a real number.

Answer»

Given \: inequality \:4x-5 < 7 , \: x \:is \:a \\real \:number

4x - 5 < 7

/* Add bothsides by 5 , we GET */

\implies 4x - 5 + 5 < 7 + 5

\implies 4x < 12

/* DIVIDING each term by 3 , we get */

\implies x < 3\: --(1)

Draw \: x = 3 \: on \:the \: graph \:sheet

We \: know \: that \: x < 3 , Now , shade \:the \\which \: shown \: in \:the \:graph

THEREFORE.,

\green {Shaded \:region \: shows \: 4x - 5

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