find the value of x if 3x - 20 = 130?find the value of x if 8x-2=-9+7x?
find the value of x if x + 6 = 33?

Answers

Answer 1
Answer: 1.
3x-20=130
3x=130+20
3x=150
x=50

2.
8x-2=-9+7x
8x-7x=-9+2
x=-7

3.
x+6=33
x=33-6
x=27

those tasks are very simple, you should try to solve them on you're own first :)
Answer 2
Answer: 3x-20=130\ \ \ /+20\n\n3x-20+20=130+20\n\n3x=150\ \ \ /:3\n\n3x:3=150:3\n\nx=50



8x-2=-9+7x\ \ \ /+2\ \ /-7x\n\n8x-7x=-9+2\n\nx=-7



x+6=33\ \ \ /-6\n\nx=33-6\n\nx=27

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Which expression is equvilent to -3 (-6b +5)

Answers

18b-15
-3x-6b=18b
-3x5=-15

hope this helps, if it doesn't don't hesitate to tell me :)
-3 (5+6b, that might work

If triangle ABC is dilated about the center of the triangle to create triangle A'B'C', dilated line D'E' will

Answers

Line D'E" will be parallel to DE

What is the reciprocal of 2 5/7 ?

Answers

2 (5)/(7)...fraction...transform\n (2*7+5)/(7) \n(19)/(7)...invest \n (7)/(19)...this...is... reciprocal

I hope it helps you :)   

it would be 2.57 because with the number you gave us would turn into a decimal

The perimeter of Ryan's room is 576 inches. How many yards is the perimeter of Ryan's room?

Answers

Here, we need to convert from inches to yards.

36 inches = 1 yard

576/30 = 19.2

The yards in Ryan's room is 19.2 yards. 

Final answer: 19.2 yards
Because we have the formula yd =in * 0.027778;
576 * 0.027778 = 16 yards

How many pounds is 6 tons

Answers

There are 2000 pounds in one ton, so we simply need to multiply the amount of pounds in one ton by the amount of tons we have.

2000 * 6 = 12000

There are 12,000 lbs in 6 tons.
Hope that helped! =)

Well, first things first!

1 ton=2,000 pounds

So, you need 6 tons, right?

Now, all you got to do is simply do 2,000*6

Last but not least, you will get 12,000 pounds.

I hope this helps:)

(Please Pick Me As Brainliest!)

THANK YOU SO MUCH!

How do simplifly? Plz help I don't know how

Answers

You see what can go into what ever number! Then you divide it and see if it comes out evenly! Hope I helped