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belka [17]
3 years ago
6

- 3(x - 7) + 2 = 20 I need help to solve it​

Mathematics
2 answers:
VLD [36.1K]3 years ago
5 0
The answer is
X=1

-3(x-7)+2=20
-3x + 21 + 2 = 20
-3x + 23 = 20
-23. -23
-3x=-3
Divide by -3
X=1
Ratling [72]3 years ago
4 0

Answer:

x=1

Step-by-step explanation:

First you will distribute it

U basically multiply the 3 by the X and the 7 here

-3 x (x = -3x And the 7 becomes a 21

Then you add the 2

21 + 2 = 23

Then you add the -3

-3x + 23 =20

Then using the equation above you subtract 23 from both sides

(-3 + 23) - 23 = 20 - 23

Then you simplify it

-3x = -3

Then you divide them using the same term

  -3

÷ -3

Then you simplfy it and you get

x=1

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grin007 [14]
Use the Quadratic Formula

6 0
3 years ago
Ivan's favorite colors are \blue{\text{blue}}blue and \green{\text{green}}green. He has \blue{\text{1 blue shirt}}1 blue shirt,
Ivan

Answer:

P(A or B) = 2/3                      

Step-by-step explanation:

Blue Garments = 1 blue shirt, 1 blue hat, 1 blue pair of pants

Total blue garments = 3

Green garments= 1 green shirt, 1 green hat, 1 green pair of pants

Total green garments = 3

Total no. of garments = blue garments +green garments = 6

A = event that Ivan selects a green garment

P(A) = Favourable outcomes/Total no. of outcomes

P(A)    = 3/6

B = event that Ivan chooses a pair of pants

P(B) = 2/6

We need to find P(A or B) = P(A∪B)

By formula, P(A∪B) = P(A)+P(B)-P(A∩B)

P(A∩B) = Probability that a green pair of pant is chosen = 1/6

P(A∪B) = 3/6+2/6-1/6

           = 4/6

           =2/3

5 0
3 years ago
"Ready
Ratling [72]

Answer:

sqrt(x^2+y^2)

Step-by-step explanation:

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sqrt(x^2+y^2)=sqrt(z^2)

sqrt(x^2+y^2)=z

3 0
3 years ago
after geting 5 new rocks geogre gave half of his collection to susan.if george gave susan 36 rocks which equation could be used
sergiy2304 [10]
36×2=72
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8 0
4 years ago
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