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Alenkinab [10]
3 years ago
5

Solve the equation 3x_2=7​

Mathematics
2 answers:
sukhopar [10]3 years ago
7 0
3x-2=7
+2 +2
——
3x=9
_____
3
X=3
valentina_108 [34]3 years ago
4 0

Answer:

x = 3

Step-by-step explanation:

3x = 2 + 7

3x = 9

x = 3

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Solve the inequality.<br> 4│x + 5│ - 2 ≤ 10
castortr0y [4]

Step-by-step explanation: To solve this absolute value inequality,

our goal is to get the absolute value by itself on one side of the inequality.

So start by adding 2 to both sides and we have 4|x + 5| ≤ 12.

Now divide both sides by 3 and we have |x + 5| ≤ 3.

Now the the absolute value is isolated, we can split this up.

The first inequality will look exactly like the one

we have right now except for the absolute value.

For the second one, we flip the sign and change the 3 to a negative.

So we have x + 5 ≤ 3 or x + 5 ≥ -3.

Solving each inequality from here, we have x ≤ -2 or x ≥ -8.

6 0
3 years ago
Read 2 more answers
.......Evaluate | 7 | = ?
Serhud [2]

Answer:

7

Step-by-step explanation:

absolute value of 7 is 7

7 0
3 years ago
1/6(a+12)= -4 please help because I don’t understand this
iogann1982 [59]

Answer:

a=-36

Step-by-step explanation:

1/6(a+12)=-4

1) Distribute <u>1/6</u> to a and 12:

1/6a+2=-4

2) Subtract 2 from both sides:

1/6a=-6

3) Multiply both sides by the reciprocal of 1/6: (6/1)

a=-36

Let me know if you have any confusion on how I reached the solution :)

3 0
3 years ago
10 is 5% of what number
GarryVolchara [31]
We can use proportion to get the result
10 ----------- 5%
x ------------- 100%
Crossmultiply proportion

5*x=10*100
5x=1000     /:5 divide both sides by 5
x=1000:5
x=200 - its the answer


6 0
3 years ago
Read 2 more answers
Find the​ slope-intercept form of the line whose slope is 2 and that passes through the point (-2,5).
MrRissso [65]

Answer:

xtcygvubhjnlkm;lbu

Step-by-step explanation:

4 0
3 years ago
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