All categories

3 years ago

-2b+2(b-10)=2(10+5b)

Mathematics

1 answer:

alina1380 [7]3 years ago

5 0

Answer:

b= -4

Step-by-step explanation:

On both sides of the equation has distributive property. We need to solve that first. Let's start with the left side of the equation.

*Positive multiplied by a negative equals a negative

-2b+2(b-10)= 2(10+5b)

-2b+2b-20= 2(10+5b)

-20= 2(10+5b)

Now let's solve the right side of the equation

-20= 20+10b

-20 -20

-40 = 10b

-40/10 = 10b/10

b= -4

Hope this helps!

You might be interested in

attashe74 [19]

Answer:

y= 3/4x

Step-by-step explanation:

Points on the graph

(0, 0), (4, 3)

the equation based on the difference in points:

y= 3/4x

6 0

3 years ago

Read 2 more answers

24 written as a percentage

Yanka [14]

Any number is equal to that number over 1

So x is equal to x/1

Same thing with 24. 24 = 24/1

To get it into percent we multiply by 100 so:

$\sf{\frac{24}{1}=\frac{24\times100}{1\times100}}$

And simplifying that we get

$\sf{\frac{2400}{100}}$

And x/100 = x%

so 2400/100 = 2400%

So your answer is 2400% :)

5 0

3 years ago

2(x-3)=7x-31 3x-2 (x+5)=-3+18 Please show your work

vredina [299]

2(x-3)=7x-31
2x-6=7x-31
-7x -7x
----------------
-5x-6=-31
+6 +6
--------------
-5x=-25
Divide by -5
x=5

3x-2(x+5)=-3+18
15
3x-2(x+5)=15
3x-2x-10=15
x-10=15
+10 +10
--------------
x=25

3 0

3 years ago

How to solve this one

Stells [14]

Answer:

(-5,1)

Step-by-step explanation:

Add it together

3x - 2x = x

y - y = 0

9 - 14 = -5

x = -5

Choose a random equation, doesn't matter.

3x + y = -14

3(-5) + y = -14

-15 + y = -14

y = -14 + 15

y = 1

7 0

2 years ago

Read 2 more answers

Choose the point slope form of the equation below that represents the line that passes through the points (-6,4) and (2,0) Y+6=2

olchik [2.2K]

Answer:

you would need to see which one adds up or just an answer out in the wen then see what you get from there if not go find another way

Step-by-step explanation:

5 0

3 years ago