All categories

3 years ago

Select the correct answer how many solutions for x dose the following equation have 2(x+4)-1=2x+7

Mathematics

1 answer:

gavmur [86]3 years ago

5 0

Answer:

every number is correct.

Step-by-step explanation:

2 (x + 4) - 1 = 2x + 7

2x + 8 - 1 = 2x + 7

2x + 7 = 2x + 7

- 7 - 7

2x = 2x

/2 /2

x = x

You might be interested in

Solve. (x + 3)^1/2– 1 = x

Natali [406]

Answer:

x=1

Step-by-step explanation:

$(x + 3) ^{ \frac{1}{2} } - 1 = x \\ \sqrt{x + 3} - 1 = x \\ \sqrt{x + 3} = x + 1 \\ square \: both \: sides \\ x + 3 = {x}^{2} + 2x + 1 \\ {x}^{2} + 2x - x + 1 - 3 = 0 \\ {x}^{2} + x - 2 = 0 \\ x ^{2} + 2x - x - 2 = 0 \\ (x^{2} + 2x) - (x + 2) = 0 \\ x(x + 2) - 1( x + 2) = 0 \\ (x - 1)(x + 2) = 0 \\ x - 1 = 0 \\ x = 1 \\ \\ \\ x + 2 = 0 \\ x = - 2$

8 0

3 years ago

What did the Selective Service Act mean for American men

Goryan [66]

Answer: The Selective Service Act requires all men between the ages of 21 and 30 to register for military service.

Step-by-step explanation:

7 0

3 years ago

(Pre calc) I only need to do part A i would love to have some help I will make it 120 Points

Elanso [62]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

What is the fraction 24/4 simplified?

Svetach [21]

Answer:

Step-by-step explanation:

3 0

3 years ago

Jackson purchased a pack of game cards that was on sale for 22% off. The sales tax in his county is 6%. Let y represent the orig

Ymorist [56]

Answer:

Final cost = 0.9328y

Step-by-step explanation:

Assume,

Original price = y

Given:

Discount = 22%

Sales tax = 6%

Computation:

Sales tax will be added on sale value

So,

Sales price = y[100%-22%]

Sales price = 0.88y

Price after sales tax :

Final cost = 0.88y[100% + 6%]

Final cost = 0.88y[106%]

Final cost = 0.9328y

8 0

2 years ago