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trasher [3.6K]
3 years ago
15

6-129. Nick represented the equation 3(2x+4)=-6 on the Equation Mat below. Choose a strategy to solve for x. You may continue to

use algebra tiles, or you may use symbols on paper.
Mathematics
1 answer:
poizon [28]3 years ago
3 0

Answer:

x = -3

Step-by-step explanation:

You have the following equation:

3(2x+4)=-6\\

you first you distribution property in order to eliminate the parenthesis:

3*2x+3*4=-6\\\\6x+12=-6

next, you subtract 12 in both sides of the equation:

6x+12-12=-6-12\\\\6x=-18

Finally, you divide the equation by 6 and simplify:

\frac{6x}{6}=-\frac{18}{6}\\\\x=-3

hence, the solution to the equation is x = -3

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Solve the system of equations : y = x/2 , y = -x - 3 . You can use any method you wish for solving systems of equations. Check y
lorasvet [3.4K]

Answer:

x=−2 and y=−1

Step-by-step explanation:

<u>Problem:</u>

Solve y=x2;y=−x−3

<u>Steps:</u>

I will solve your system by substitution.

y=1/2x;y=−x−3

Step: Solve y= 1/2x for y:

Step: Substitute 1/2 x for y in y=−x−3:

y=−x−3

1/2x= =−x−3

1/2x+x=−x−3+x(Add x to both sides)

3/2x = -3

3/2x/3/2 = -3/3/2 (Divide both sides by 3/2)

x=−2

Step: Substitute −2 for x in y=1/2x:

y=1/2x

y=1/2(-2)

y=−1(Simplify both sides of the equation)

<u>Answer:</u>

x=−2 and y=−1

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2 years ago
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a_sh-v [17]
The answer is 31
It is 31 because all you do is just put the number 6 into the problem and multiply and add it together which will get you 31 minutes to run 6 laps
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4 years ago
How do you solve this? 4x(a-4)
masya89 [10]

Answer:

Step-by-step explanation:

7 0
3 years ago
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Can someone help me with this math homework please!
jolli1 [7]

Answer:

(-3,-6) and (-3,2)

Step-by-step explanation:

A line with an undefined slope is vertical. In this case it must have x coordinates equal to -3

4 0
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