Which is a correct first step in solving the inequality -4(3-5)< -6x+9

Use PEMDAS

PParentheses first

EExponents (ie Powers and Square Roots, etc.)

MDMultiplication and Division (left-to-right)

ASAddition and Subtraction (left-to-right)

-4(3 - 5) < -6x + 9

First step: 3 - 5 = -2

-4(-2) < -6x + 9

Next step: -4(-2) = 8

8 < -6x + 9               subtract 8 from both sides

0 < -6x + 1              add 6x to both sides

6x < 1            divide both sides by 6

x < 1/6   - solution

step-by-step explanation:

you estimate that the angle of elevation to the top of the 86th floor (the observatory) is 82 .the total height of the building is another 123 meters above the 86th floor.

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