Mathematics: Which is the solution set of the inequality -15y+9 -36

idk I dont get it either so sorry...

Which is the solution set of the inequality -15y+9

championroof

20.01.2022

$-15y+93\:\\ \:\mathrm{Interval\:Notation:}&\:\left(3,\:\infty \:\right)\end{bmatrix}$

Therefore, the first choice is correct.

The graph of the inequality is also attached below.

Step-by-step explanation:

Considering the inequality

-15y+9

solving

-15y+9

$\mathrm{Subtract\:}9\mathrm{\:from\:both\:sides}$

-15y+9-9

-15y

$\mathrm{Multiply\:both\:sides\:by\:-1\:\left(reverse\:the\:inequality\right)}$

$\left(-15y\right)\left(-1\right)\left(-45\right)\left(-1\right)$

15y45

$\mathrm{Divide\:both\:sides\:by\:}15$

$\frac{15y}{15}\frac{45}{15}$

In other words,

$-15y+93\:\\ \:\mathrm{Interval\:Notation:}&\:\left(3,\:\infty \:\right)\end{bmatrix}$

Therefore, the first choice is correct.

The graph of the inequality is also attached below.

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