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sdas [7]
2 years ago
13

-7x+3=2x+2−9x i need help i don't know what to do p​

Mathematics
1 answer:
kobusy [5.1K]2 years ago
4 0

Answer:

X= - 1 /14

Step-by-step explanation:

combine like terms

7x+=2x + 2  - 9x

7x + 3 = -7x + 2

Subtract 3 from both sides

7x + 3 = - 7x + 2

7 x + 3 - 3 = - 7x + 2 - 3

Simplify

7x + 3- 3 = - 7x + 2 - 3

7x = - 7x + 2- 3

7x = - 7x - 1

Add 7x to both sides

7x = - 7x - 1

7x + 7x = - 7x - 1 + 7x

Simplify

14x = - 7x - 1 + 7x

14x = - 1

Divide both sides by the same factor

14x = - 1

14x    = - 1

___  ____

14       14

Simplify

Cancel terms that are in both the numerator and denominator

14x =         - 1

___            ___          

14               14

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The segments shown below could form a triangle.<br>O<br>A. True<br>O<br>B. False<br>​
sveta [45]

Answer:

b

Step-by-step explanation:

4 0
4 years ago
What is the equation of this circle in standard form M(2,4) N(9,4) these are coordinates across the diameter of the circle?
igomit [66]
The standard form is

(x-xo)² + (y-yo)² = r²

Where xo,yo is the center of the circumference
and r is the radius.

We find the distance between the points to determine the <span>diameter

d=sqrt ((9-2)</span>² + (4-4)²<span>) = sqrt (49) = 7

The radius of the circumference is d/2 = 7/2 = 3.5

And we can see that those points are at the same coordinate y = 4 

The center is given then by , x = (9+2)/2 = 5.5
                                              y = (4+4)/2 = 4

The equation results

(x-5.5)</span>² + (y-4)² = (3.5)²<span>

</span>
3 0
3 years ago
Find each measure m&lt;1, m&lt;2,m&lt;3
Leno4ka [110]

Answer:

option 2.

m1 = 75    ,   m2 = 129   ,   m3 = 100

Step-by-step explanation:

with the rule that the internal angles of a triangle add up to 180 ° we can calculate the missing angles

x + 46 + 29 = 180

x = 180 - 46 -29

x = 105

a flat angle has 180 °

m1 + 105 = 180

m1 = 180 - 105

m1 = 75

46 + 54 + y = 180

y = 180 - 46 -54

y = 80

80 = z + 29

z = 80 - 29

z = 51

as they are two crossed lines the angle is reflected from the opposite side

with that principle and knowing that the angle of a turn is 360 °, if we subtract the 2 known angles and divide it by 2 we will obtain the missing angle (m2)

m2 * 2 = 360 - 51 * 2

m2 = 258/2

m2 = 129

m2 = 29 + m3

129 = 29 + m3

m3 = 129 - 29

m3 = 100

4 0
3 years ago
B) The cost price of an article was Rs 4000.Find the marked price of the
sweet [91]

Answer:

Market price = Rs. 6,000

Step-by-step explanation:

Given:

Cost price = R.s 4,000

Profit after discount = 20%

Discount = 20%

Find:

Market price

Computation:

Sales price = Cost price[1+Profit after discount]

Sales price = 4,000[1+20%]

Sales price = 4,800

Market price = Sales price[100/(100 - Discount)]

Market price = 4,800[100/(100 - 20%)]

Market price = Rs. 6,000

7 0
3 years ago
Anderson has $50 in his savings account. He deposits $5 every week. His father also deposits $20 into the account every time And
Sav [38]

Part A: 5 is the coefficient, w is the variable, 50 is the constant

Part B: 10 x 5 = 50 + 2 x 20 = 40+ 50 = $140

Part C: the constant,50,would change and become 85.  Hope this helps :)
8 0
3 years ago
Read 2 more answers
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