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
valkas [14]
4 years ago
9

4x+5-2=3x+7x-15 I dont get how to get the answer for this please help.

Mathematics
1 answer:
fredd [130]4 years ago
4 0
Hello there! How are you today?

4x + 5 -2 = 3x + 7x - 15

First, we need to get the variable (x) on one side. To do that, we must simplify the right side of the equation, and then decide what to do from there, so let's proceed to do so.

3x + 7x = 10x

4x + 5 - 2= 10x - 15

Now we have x simplified on both sides of the equation. However, we need x to be on one side of the equation in order to solve for it.
Subtract 4x from both sides.

4x - 4x = 0
10x - 4x = 6x

We are now left with:
6x - 15 = 5 - 2

Simplify the right side of the equation.

5 - 2 = 3

6x - 15 = 3

Now we need to isolate x. To isolate x, we need to add 15 to both sides, as x is being subtracted by 15, and adding 15 will cancel it out.

-15 + 15 = 0
3 + 15 = 18

We now are left with:
6x = 18

Now we only have one step left, and that is to solve for x. Since x is being multiplied by 6, we need to perform the opposite order of operations to cancel it out. To do that, we must divide both sides by 6 to solve for x.

6x = 18
Divide both sides by 6.

6x / 6 = x
18 / 6 = 3

We are now left with the solution:

x = 3

I hope this helps!
You might be interested in
Determine the intercepts of the line.<br> x-intercept: (_,_)<br> y-intercept: (_,_)
sashaice [31]

Answer:

x-intercept is (-10,0) and y-intercept is (0,-45)

Step-by-step explanation:

7 0
3 years ago
Find the balance in the account. $800 principal earning 7%, compounded annually, after 4 years
Rasek [7]

the answer is $1048.63 hope this helps

3 0
3 years ago
Read 2 more answers
If a rectangle is r feet long and s feet​ wide, which expression represents the length of its diagonal in terms of r and​ s? A r
riadik2000 [5.3K]

The length of its diagonal in terms of r and​ s is √r² + s²

In order to get the length of the diagonal of a triangle, we will use the Pythagoras theorem:

Pythagoras theorem states that the sum of the square of the diagonal is equal to the sum of the square of the other two sides.

Given the following

Length = r feet

width = s feet

The diagonal "l" will be expressed as;

l² = r² + s²

Take the square root of both sides

√l² = √r² + s²

l = √r² + s²

Hence the length of its diagonal in terms of r and​ s is √r² + s²

Learn more here: brainly.com/question/11929455

8 0
3 years ago
Simplify this fraction, it can be a whole number or decimal :)<br> 4.2/-0.2
3241004551 [841]

Answer:

yes cuz +1+1

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Can anybody tell me why it’s “-275”? Why is it negative ? And what is the formula for finding y? And if y=b how do you find b?
Norma-Jean [14]

Answer:

275 is the amount SPENT per month for rent. Since you are decreasing that amount from your savings, it is represented with a negative sign.

The formula is: y = mx + b      where

  • m is the rate             -->   -275 per month
  • b is the fixed rate     --> 3500 savings

If you think about it logically - You have 3500 and spend $275 per month

1st month: 3500 - 275 = 3225

2nd month: 3225 - 275 = 2950

3rd month: 2950 - 275 = 2675

4th month: 2675 - 275 = 2400

5th month: 2400 - 275 = 2125

6th month: 2125 - 275 = 1850

It is easier to write it as an equation where x is the number of months and y is the balance for that month.

y = -275x + 3500

To check if the point (6, 1850) is on the line, input x = 6 and y = 1850

     y = -275x   +  3500

1850 = -275(6) + 3500

1850 =  -1650  + 3500

1850 =        1850

Since it makes a true statement, (6, 1850) is a point on the line.

5 0
4 years ago
Other questions:
  • Which expression represents the value of the series below? 3 + 7 + 11 + 15 + ... + 1,671
    9·2 answers
  • 4x=124 what is the solution to this equation?
    8·2 answers
  • A jeweler needed two diamonds of exactly the same weight to make a ring. The first stone she selected weighed 0.642 carat, the s
    15·2 answers
  • Round $60.55 to nearest dollar
    9·1 answer
  • You buy clothing at a sale you buy a sweater at 7/10 of it's original price of $35
    7·1 answer
  • There are 4 boys in a class of 13 students.
    13·2 answers
  • James, Aimee and Zack have
    8·1 answer
  • Name the property shown by each statement:
    5·2 answers
  • Hi could can you please tell me the answer and tell me how you got it so I can understand this? Both 6 A and B
    8·1 answer
  • NEED TO KNOW THIS PLEASE!!! Extra pts! 20!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!