1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
amm1812
3 years ago
9

Solve this equation 3x + 5 = 7x – 7

Mathematics
2 answers:
lesya692 [45]3 years ago
7 0

Answer:

3

To find:

x

Step-by-step explanation:

3x + 5 = 7x – 7

3x - 7x = -7 - 5

-4x = -12

x = -12/-4

x = 3

hope it helps u!

Mama L [17]3 years ago
4 0
Add 7 to both sides
3x + 12 = 7x
Subtract 3x
12 = 4x
Divide by 4
x = 3
You might be interested in
What is the equation of a line that passes through the point (2, 7) and is perpendicular to the line whose equation is y=x/4+5 ?
worty [1.4K]

Answer:

y = -4x+15

Step-by-step explanation:

y=x/4+5 may be presented as y = 1/4 x + 5, where a=1/4, b=5

swapping numerator and denominator and inserting an opposite sign in a=1/4, we have:

1/4 --------> 4/1 -------> -4/1 = -4

y = -4x+n

Point (2,7) means that x=2, y=7 substitute it to the equation y=-4x+n, calculate "n":

7=-4*2+n ------>    7=-8+n ------->   7+8 = n -------> 15=n

substituting n=15 to the equation y=-4x+n, we get finally y=-4x+15


8 0
3 years ago
Sam has softball practice every 3 days and drama lessons every 7 days. On what day will both occur?
sweet [91]

Answer:

the 21st day

Step-by-step explanation:

21 is 3 and 7's least common multiple

5 0
3 years ago
Read 2 more answers
Mark buys a fresh pair of Walmart shoes that cost $35.99 plus 5.5% tax. How much did he pay?
elena55 [62]

Answer:

$37.97

Step-by-step explanation:

The price of the shoes before tax is 100% of the price of the shoes.

Then the tax adds 5.5% of the price of the shoes to the price of the shoes.

He ends up paying 100% + 5.5% of the price of the shoes.

100% + 5.5% = 105.5%

Now we find 105.5% of $35.99.

105.5% of $35.99 = 1.055 × $35.99 = $37.96945

Answer: $37.97

8 0
2 years ago
Read 2 more answers
What is the estimate of 1/2+1/6?
erastovalidia [21]
<span>2 — = 0.66667 3 hello

</span>
6 0
2 years ago
Read 2 more answers
How many kilometers are in 3 centimeters?
Crazy boy [7]

Answer:

0.00003

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • The hypotenuse of a right triangle is 10m long. the longer leg is 2m longer than the shorter leg. find the side lengths of the t
    14·1 answer
  • rows of chairs are set out for a wedding. there are 6 chairs in the first row, 14 chairs in the second row, and 22 chairs in the
    6·1 answer
  • 108/40 in its simplest form
    13·1 answer
  • A walli can be built by 6 men working for 8 hours per day in 5 days. How many days will it take 4 men to build if they work only
    10·1 answer
  • 1. TRIATHLON The course for a local
    13·1 answer
  • PLEASE PLEASE PLEASEE HELP LAST TIME I ANSWERED NOBODY ANSWER PLS HALP
    8·1 answer
  • Is 1+4(3x-10)-12x equal to -9?<br> And how do you get the answer?
    13·1 answer
  • The area of two similar triangles are 50dm^2 and 32dm^2. The sum of their perimeters is 117dm. What us the perimeters of each of
    7·1 answer
  • Which of the following is an equation of the line that has a slope of 1/3 and passes through the point (-6, 2)? ​
    7·1 answer
  • The length of a rectangle is 2 cm longer than its width.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!