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Viefleur [7K]
2 years ago
5

7x−2(x+3) =? also you have to simplify your answer

Mathematics
1 answer:
12345 [234]2 years ago
6 0
7x-2(x+3)
=7x-2x-6
=5x-6
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For each expression, write an equivalent expression that only uses addition a. 20 - 9 + 8 -7 b. 4x - 7y - 5z + 6 c. -3x - 8y - 4
Genrish500 [490]

Answer:

a. =11+ 1

b. =4x+ (-7y) + (-5z) +6

c. (-3x) + (-8y) +(-4)+(-8/7z)

Step-by-step explanation:

a. 20 - 9 + 8 -7

=11+ 1  ( this is obtained by solving)

b. 4x - 7y - 5z + 6

=4x+ (-7y) + (-5z) +6

We multiply the negative sign with the positive sign to get a minus so the answer remains the same and the expression is written as an addition sum.

c. -3x - 8y - 4 - 8/7z

-[ 3x+8y+4+8/7z]

or

(-3x) + (-8y) +(-4) +(-8/7z)

The minus sign is taken as common leaving the expression with the plus only.

It can be written in the same manner as above, adding the negative terms so that the expression is written as a sum.

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2 years ago
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BlackZzzverrR [31]

Answer:

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6 0
3 years ago
makela plants 3/4 of her herb garden with basil and 1/4 with sage. explain why the fraction strips show that the whole garden is
KonstantinChe [14]
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5 0
3 years ago
Read 2 more answers
What is the rate of change of the water level , in feet per hour
miskamm [114]
A; rate of change is the same as slope, so, using the slope formula, m= \frac{y_{2} - y\1_{1}   }{ x_{2} - x_{1} }, where m is the slope and x_{1}, x_{2}, y_{1}, and y_{2} are the x and y values.

Plug in 2 points for x and y, water level being the y and time being the x since we're looking for the answer in ft/hr-- you can choose any two, but from the same row.

m= \frac{ 30-50}{4-0}
m= \frac{-20}{4}
m= \frac{-5}{1}
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4 0
3 years ago
Find the missing lengths and leave answers as radicals in simplest form?
ElenaW [278]

Answer:

x=6

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Step-by-step explanation:

y(side)= x

x(side)=2x

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x=3;

x= 2(3)=6

y=(3)=3

5 0
3 years ago
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