3 years ago

When 2 times a number is increased by 9 the answer is the same as when 30 is decreased by the number

Mathematics

2 answers:

galben [10]3 years ago

8 0

Answer:

(2*n)+9=n-30

Step-by-step explanation:

I'm not sure but I think that is the equation

Oduvanchick [21]3 years ago

4 0

Answer:

The number is 7.

Step-by-step explanation:

Write out the equation.

2x+9=30-x

Move the variable, x, so both variables are on one side of the equation.

2x+9=30-x

+x +x

Subtract 9 on both sides to combine like terms.

3x+9=30

-9 -9

Divide by 3 on both sides to isolate the variable.

3x=21

3x/3=21/3

x=7

You might be interested in

A four-pack of 42-ounce ink cartridges sells for $85.99. The expression 42c represents the amount of ink in a number of cartridg

morpeh [17]

I think it is A number of cartridges

6 0

2 years ago

Read 2 more answers

Use the accompanying table of standard scores and their percentiles under the normal distribution to find the approximate standa

olganol [36]

Answer:

option a

Step-by-step explanation:

markme brainliest

3 0

2 years ago

11)

Alinara [238K]

Answer:

Step-by-step explanation:

3 0

2 years ago

If f(x) = 2x - 3 and g(x) = (x + 3)/2, show that f(g(x)) = g(f(x)) = x.

3241004551 [841]

See attached photo……………..

4 0

2 years ago

Find the product and show your work 34,879 x 10 =

creativ13 [48]

Answer:

34,879 × 10 = 348,790

Step-by-step explanation:

The answer is 348,790 because 34,879 multipled by 10 is 348,790 as shown in the picture above ^^

7 0

3 years ago

Read 2 more answers