3 years ago

What is the solution to this equation? 15 - 2x = 7 - 5x

Mathematics

2 answers:

DaniilM [7]3 years ago

6 0

Answer:

- 2 2/3

Step-by-step explanation:

Step 1:

15 - 2x = 7 - 5x

Step 2:

15 = 7 - 3x

Step 3:

8 = - 3x

Step 4:

3x = - 8

Step 5:

- 8/3 = - 2 2/3

Answer:

x = - 2 2/3

Hope This Helps :)

mylen [45]3 years ago

3 0

Answer:

-8/3

Step-by-step explanation:

You might be interested in

Which identity coukd be used to rewrite x^4-100

kupik [55]

-100+x^4, adding a negative is the same as subtracting, hope this helps. :)

7 0

3 years ago

Whats the answer for substitution x=9 y=3x-1

Blizzard [7]

Answer:

x=9, y=26. (9, 26).

Step-by-step explanation:

x=9

y=3x-1

--------

y=3(9)-1=27-1=26

8 0

3 years ago

Read 2 more answers

The amount of radioactive uranium changes with time. The table below shows the amount of radioactive uranium f(t) left after tim

aniked [119]

Answer:

$f(t) = 100(0.25)^t$

Step-by-step explanation:

The general exponential function is,

$f(t)=ab^t$

The points given in the table are,

$(0,100),(0.5,50),(1,25)$

Putting $(0,100),(1,25)$ in the general equation, we get

$\Rightarrow 100=ab^0$

$\Rightarrow a=100$

And

$\Rightarrow 25=ab^{1}$

$\Rightarrow ab=25$

Putting the value of a,

$\Rightarrow 100b=25$

$\Rightarrow b=0.25$

Now the exponential function becomes,

$f(t) = 100(0.25)^t$

4 0

3 years ago

Read 2 more answers

Hey you click and answer :}

Contact [7]

Answer:

Hey :)

Step-by-step explanation:

3 0

3 years ago

A university has raised $8,000 for a new scholarship fund. A university trustee offers to match the donation up to 60% if the un

inysia [295]

$8,000 + $1,500 = 9,500

So 9,500 x .6 = 5,700 dollars donated by trustee.

$9,500 + $5,700 = $15,200 dollars tota

7 0

4 years ago

Read 2 more answers