3 years ago

Solve the following: 3x + 7 = 5x - 1 X =

Mathematics

1 answer:

dexar [7]3 years ago

7 0

Answer:

x= 4

Step-by-step explanation:

3x + 7 = 5x - 1

combine the like numbers: add 1 to the other side, isolating 5x

3x + 8 = 5x

Subtract 3x from 5x, isolating 8

8 = 2x

divide

4 = x

Check if it works

3(4) + 7 = 5(4) - 1

19 = 19

Yes, it is correct

You might be interested in

Choose the correct simplification of (7x3 − 8x − 5) + (3x3 + 7x + 1).

Ganezh [65]

<span>10x3 − x − 4 is the correct answer to your question</span>

4 0

4 years ago

Read 2 more answers

Jason has a coupon for $2.50 off an electronic book from an online bookstore. If the store original price in dollars of an elect

Sergio [31]

D=P-2.50
I hope this is what you were looking for

6 0

3 years ago

Read 2 more answers

Simplifying algebraic expressions 3c + 6( -2 - 7c)

max2010maxim [7]

Answer: -39c-12

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

A scientist measures the angle x and the distance y between the Earth and the Sun. Using complete sentences, explain how the sci

AnnZ [28]

The scientist can use only the angle x and the distance y to calculate the distance between the Earth and the Sun using the cosine function.

cos x = BC / y

Solving for BC

BC = y cos x

BC is the distance between the Earth and the Sun :D

7 0

3 years ago

Write at least three different expressions that are equivalent to -1/2 (-12x+30) .

choli [55]

Answer:

6x-15

Step-by-step explanation:

-1/2*2(-6x+15)

-(-6x+15)

6x-15

5 0

2 years ago

Read 2 more answers