3 years ago

How to solve 3x-5=7 step by step

Mathematics

1 answer:

7nadin3 [17]3 years ago

6 0

Answer:

x=4

Step-by-step explanation:

3x-5=7

Add 5 to both sides... (-5+5 = 0, 7+5=12)

3x=12

divide by 3 on both sides to get you your answer (3/3 cancels out, 12/3 =4)

x=4

You might be interested in

Actual of 24 times 15

Zepler [3.9K]

360 is the answer that you need

6 0

4 years ago

At a hot dog stand they serve regular hot dogs and footling hot dogs at a ratio of 5 to 3. Based on this ratio how many footlong

natta225 [31]

Answer:
45
Step-by-step explanation:
Ratio is 5:3
So total ratio "parts" is 5 + 3 = 8
In total there are 120 dogs served, so each part is:
120/8 = 15 dogs
Since, footlong hot dogs are "3" parts, and each part is 15 dogs, there will be:

3 * 15 = 45 footlong hotdogs

3 0

3 years ago

PLEASE ANSWER THIS ASAP ASAP

Alex

12 = 15 (z - 1/5)

12 = 15z - 3

+3 +3

15 = 15z

15 (÷ 15) = 15z (÷ 15)

1 = z

Hope I helped!!! :)

8 0

4 years ago

What is the total for my $ 22.73 fabric purchase after 6% sales tax?

zaharov [31]

Answer:

21.3662 $

Step-by-step explanation:

100% - 6% = 94%

22.73 × 94/100 = 21.3662$

7 0

3 years ago

Select the correct answer from each drop-down menu. if f(x)=x^2+2x-3 and g(x)=x^2-9, find (f/g)(4) and (f+g)(4).

Nataly_w [17]

Answer:

(f/g)(4) = 3

(f + g)(4) = 28

Step-by-step explanation:

(f/g) = $\frac{x^2+2x-3}{x^2-9}$

(f + g) = $2x^2 + 2x -12$

Simply plug in 4 for x in both equations to find you answer!

3 0

4 years ago