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victus00 [196]
3 years ago
5

15-x=2(x+3) I need this solved and show me how you solved it

Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
4 0
15 - x = 2(x + 3)
15 - x = 2x + 6
15 = 3x + 6
9 = 3x
3 = x
x = 3
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Please help me with this math problem.
mylen [45]
---|--/--/--|--/--/--|--/--/--|--/--/--|--/--/--|--/--/--|--/--/--|--/--/--|--/--/--|--/--/--|--------------
   -5     -4-11/3-3        -2      -1       0         1        2  8/3 3        4        5
8/3≈ 2,6

-11/3 
≈-3,6
4 0
3 years ago
What are the terms of each expression 3a-19
laiz [17]
Hope this is what you were looking for:)

6 0
3 years ago
Read 2 more answers
Adam, Brian, and Casey are all brothers. Brian is three years less than twice Casey’s age. Adam is 9 years older than Casey. The
blagie [28]

Let Casey's age be x

Brian's age will be -3 from 2 times x ( Casey's age ) so it will be 2x-3

Adam's age will be Casey's age (x) + 9 which is x+9

NOW the sum of all these ages is 46 so..

Casey's age + Brian's age + Adam's age = 46

x + 2x-3 + x+9 = 46

2x + x + x + 9 -3 = 46

4x + (9 - 3) = 46

4x - 6 = 46

now transfer the numbers on the left one by one to the other side( right )

4x = 46 - 6        ( always remember the sign of the number becomes the                            opposite when we transfer them to other side)

4x = 40

x = 40 / 4

x = 10

so x = Casey's age = 10

2x - 3 = Brian's age = 2 * 10 - 3

                                = 20 - 3   =   17

x + 9 = Adam's age = 10 + 9 = 19

8 0
3 years ago
Please help me find the missing side !
Vadim26 [7]

Answer:

x=14 and y=7

Step-by-step explanation:

This is a 30-60-90 triangle

So in terms of x it would be x-x\sqrt{3} -2x

If across the 60 is 7\sqrt{3} then y would be 7 which is across the 30 degrees

And x would be 14 because 2(7)=14

7 0
2 years ago
Olivia needs 34 inches of copper wire for an experiment. The wire is sold by the centimeter. Given that 1 inch = 2.54 centimeter
Pani-rosa [81]

Answer:

86.36cm

Step-by-step explanation:

1 inch = 2.54 cm

34 inch = ???

multiply 34 and 2.54 ( like X )

34×2.54 = 86.36cm

7 0
3 years ago
Read 2 more answers
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