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rewona [7]
3 years ago
12

Hãy giải phương trình bậc nhất 7-2x=22-3x

Mathematics
2 answers:
schepotkina [342]3 years ago
8 0

Answer:

7-2x=22-3x

7-2x=22-3xcollecting like terms:

7-2x=22-3xcollecting like terms:-2x+3x=22-7

7-2x=22-3xcollecting like terms:-2x+3x=22-7 x=15

Step2247 [10]3 years ago
3 0

Answer:

7-2x=22-3x

-2x=15-3x (minus 7 from both side)

x=15 ( plus 3x from both side)

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the white rabbit has an appointment to see the red queen at 4pm every day of the week except weekends. On Monday he arrives 16 m
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If the diameter is 3 feet, then the radius is 1.5 feet. Area of a circle = pi * radius squared or A =  \pi r^{2}

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4 years ago
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What is the area of this shape?
Andrej [43]

Answer:82cm^2

Step-by-step explanation:

Area of shape=area of big rectangle + area of small rectangle

Length of big rectangle=10

Width of big rectangle=7

area=length x width

area of big rectangle=10x7

area of big rectangle=70

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4 years ago
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What is the remainder when the polynomial 6x2+11x−3 is divided by 2x−1?
o-na [289]

Answer: 4

There are three different ways to find the remainder.  Since I don't know which lesson you are working on, I will show you all three methods.

<u>Long Division:</u>

           <u>3x  +  7      </u>

2x - 1 ) 6x² + 11x - 3

       -  <u>(6x²  -  3x)</u>   ↓

                    14x  - 3

                -   (<u>14x  - 7)</u>  

                              4    

<u>Synthetic Division:</u>

2x - 1 = 0   ⇒   x = \frac{1}{2}


\frac{1}{2}   | 6      11     -3

    <u>| ↓       3     7</u>

      6      14    4

<u>Remainder Theorem:</u>

2x - 1 = 0   ⇒   x = \frac{1}{2}

f(x) = 6x² + 11x - 3

f(\frac{1}{2}) = 6(\frac{1}{2})² + 11(\frac{1}{2}) - 3

      = 6(\frac{1}{4}) + \frac{11}{2} - 3

      = \frac{3}{2} + \frac{11}{2} - \frac{6}{2}

      = \frac{8}{2}

      = 4

                                     

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