If $$R=\left\{\left(x,y\right):y=2x\right\}$$ is a relation in $$A=\left\{1,2,3,4,6,7,8\right\}$$ then write all the elements of $$R$$

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Single Choice
Find the solution of the following: If $$5x + 4 > 8x - 11$$, then $$x$$
Solution
$$5x+4> 8x-11$$ Add $$-8x$$ and $$11$$ on both sides, we get $$5x-8x+4+11> 8x-11-8x+11$$ $$\Rightarrow -3x+15> 0$$ Add $$-15$$ both sides we get, $$-3x+15-15> 0-15$$ $$\Rightarrow -3x> -15$$ $$\Rightarrow 3x < 15$$ Divided by 3 both side we get $$\Rightarrow \cfrac{3x}{3}< \cfrac{15}{3}$$ $$\Rightarrow x< 5$$
SIMILAR QUESTIONS
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