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AURORKA [14]
3 years ago
12

92 = -4(2r - 5) r = ? Help!

Mathematics
2 answers:
Sloan [31]3 years ago
6 0

First to get rid of the parantheses we must multiply -4 times any number inside of the parantheses.

<em>92=-4(2r-5)</em>

<em>92=-8r+20</em>

Next subtract 20 from both sides

<em>92=-8r+20</em>

<em>72=-8r</em>

Divide both sides by -8

<em>72=-8r</em>

<em>72/-8=-8r/-8</em>

<em>-9=r</em>

<em>Our final answer is -9</em>

Hope this helps!

Roman55 [17]3 years ago
5 0

Hello there!

92 = -4(2r - 5)\\

Explanation:

↓↓↓↓↓↓↓↓↓↓↓↓

First you had to switch sides.

-4(2r-5)=92

Then you divide by -4 from both sides of the equation.

\frac{-4(2r-5)}{-4}=\frac{92}{-4}

Simplify

2r-5=-23

Next you had to add by 5 from both sides of the equation.

2r-5+5=-23+5

Simplify

2r=-18

You can also divide by 2 from both sides of the equation.

\frac{2r}{2}=\frac{-18}{2}

Simplify it should be the correct answer.

r=-9

<u><em>Answer⇒⇒⇒⇒⇒r=-9</em></u>

Hope this helps!

Thank you for posting your question at here on Brainly.

Have a great day!

-Charlie

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An inequality can be defined as a mathematical relation that compares two (2) or more integers and variables in an equation based on any of the following arguments:

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