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3 years ago

Explain how to solve one absolute value equation by writing it as two equations.

1 answer:

5 0

If you have
|a|=b, then solve for the variable in euations
a=b and a=-b
for ineqalities, it is much trickier

for
|a|>b, assume a>b and a<-b
for
|a|<b, asssume -b<a<b

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PLEASE HELP For what value of the variable will the value of 2x+1 be 20 greater than 8x+5?

wlad13 [49]

It will be a negative.

for an example: -20 for x would mqke 2x + 1 into -39 and 8x + 5 into -155. that's 116 apart, so maybe -2(8) + 5 = -11

-2(2) + 1 = -3

but that's only 8 apart, so it'd be higher.

-4(2) + 1 = -7

-4(8) + 5 = -27

BOOM

Tadaaaa,

You probably thought positive, but sometimes it's negative, you know what I mean?

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4 years ago

Negative 5 and 3/4 multiplied by 8/23

Ira Lisetskai [31]

Answer:

-2

Step-by-step explanation:

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4 years ago

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Lisa [10]

Answer:

hchctftdyfubuh6f6fuvtdrvinivyvobyzecuctcy

6 0

3 years ago

WILL GIVE BRAINLIEST , pls helppp .

Juli2301 [7.4K]

Answer:

Step-by-step explanation:

f=120p

f=120(16)

f= 1920

5 0

3 years ago

<img src="https://tex.z-dn.net/?f=2x-7y%3D9%5C%5Cx%2B2y%3D10" id="TexFormula1" title="2x-7y=9\\x+2y=10" alt="2x-7y=9\\x+2y=10" a

coldgirl [10]

Answer:

x=8 y=1

Step-by-step explanation:

you have first and second equation, YOU MUST FIND THE THIRD EQUATION

SOLUTION

FIND equation 3 from 2

x+2y=10

x=10-2y...........3

Substitute equation 3 from first (not from the equation where you got equation 3)

2 (10-2y)-7y=9

20-4y-7y=9

-11y=9-20

-11y= -11

-11y/-11= -11/-11

y=1

Find the value of x from the third equation

x=10-2 (1)

x=8

6 0

3 years ago