For the equation 2n - 3 = 7

Mathematics

2 answers:

Irina18 [472]3 years ago

6 0

2n-3=7
+3.+3
2n=10
2. 2
n=5
2(5)-3=7

Stells [14]3 years ago

5 0

Answer:

The variable is n

The coefficient is 2

And the solution to n is 10.

Step-by-step explanation:

The number in the equation is the variable. The coefficient is the number before the variable. And a number next to a letter means you multiply. So 2*5=10 10-3=7

You might be interested in

What is equilivent to 5xa

Gelneren [198K]

Answer: 5 * x * a

Step-by-step explanation:

It’s algebra

7 0

4 years ago

Dont understand please help easy 20pts

nlexa [21]

Answer:

The answer is G. y=2x-2

Step-by-step explanation:

y+6=2(x+2)

First you multiply 2 by what is in the parenthesis

y+6=2x+4

Next you get y by itself by subtracting 6

y=2x+4-6

Simplify

y=2x-2

4 0

3 years ago

Kyra observed that 85% of the students at a library liked reading mystery stories. If 30 students at the library did not like re

boyakko [2]

First calculate that numeric value. It cannot be done immediately without calculations.

if 85% of studends liked mystery that means that 100% - 85% = 15% didnt like.

Those 15% are 30 that were given in text. Now we can calculate this using proportion:

15% 30 students
85% x students

we use cross multiplication:
15*x = 30*85
x = 30*85/15
x = 170

Answer is 170

8 0

4 years ago

2. If x is directly proportional to y^3 and x=32 when y=2, i) Find an equation

svp [43]

Answer:

(i)

$x \alpha y {3} \\ \frac{x}{y {3} } = k$