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Monica [59]
3 years ago
14

How do you do inequalities

Mathematics
1 answer:
fgiga [73]3 years ago
8 0
So some quick tips for inequalities:
**What you do to one side you HAVE TO do it to the other 2**
**If you ever divide a negative number past the inequality signs, the signs FLIP!!**
(e.g. 2>-5x>25)
-2/5 <x < -5

I hope that this has helped!
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Given 18x - 2(3x+1) = 5x -16
NISA [10]

I am guessing that you are looking for the value of "x"!

Here we go :

18x - 2(3x + 1) = 5x - 16

Let's start with the parentheses :

-2 × 3x = -6x

-2 × 1 = -2


18x - 6x - 2 = 5x - 16

subtract 6x from 18x


12x - 2 = 5x - 16

add 2 on both side of the equation


12x = 5x - 14

subtract 5x from both side of the equation


7x = -14

divide by 7 on each side of the equation


x = -2


There you go! I really hope this helped, if there's anything just let me know! :)

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