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NNADVOKAT [17]
3 years ago
6

Multiple Step Equations

Mathematics
2 answers:
Wittaler [7]3 years ago
5 0
The answer is D.

The first step is to use the distributive property and turn 5(x-4) into 5x - 20.
You then move the twenty into the right equation by adding 20 to both sides. The final step is to move the 3x into the left equation by subtraction and then dividing both sides by 2 to isolate x. Hope this helped !!
salantis [7]3 years ago
3 0

Answer:

D

Step-by-step explanation:

5(x-4) = 3x + 4

5x-20 = 3x + 4

5x-3x-20= 4

2x=4 +20

2x=24

x=12

check answer by inserting 12 for x into original  equation.

5(12-4) = 3(12) +4

5(8) = 36 +4

40 = 40

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Solution:

The first polynomial is miswritten.

The right one is: 2x^3 + 4x^2 - 35x + 15.

So, the division is [2x^3 + 4x^2 - 35x + 15] / (x - 3)

The synthetic division uses the coeffcients and obviate the letters, but you have to be sure to respect the place of the coefficient.

So, in this case it is:

3 | 2      4    -35    15
   ---------------------------------
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So, the quotient is 2x^2 + 10x - 5, and the remainder is 0.

I like to show it in this other way:


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Of course they are the same coefficients and the answer continue being quotien 2x^2 + 10x - 5, remainder 0.
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Step-by-step explanation:

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