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
The demand for a certain company's e-reader can be approximated byq =720p− 1 million units per year (60 ≤ p ≤ 400),where p is th
LenKa [72]

Answer:

Equilibrium price P = 200 dollars

equilibrium demand of million e-readers per yer = 2.6 mi/yr

Step-by-step explanation:

Given that;

q = 720/p - 1 million units per year { 60 ≤ p ≤ 400 }

supply q = 0.018p − 1 million units per year (60 ≤ p ≤ 400)

we substitute

720/p - 1  = 0.018p − 1

720/p = 0.018p

720 = 0.018p^2

p^2 = 720/0.018 = 40000

p = sqrt(40000)

p = 200

substitute value of p

q = 0.018(200) − 1

q = 3.6 - 1 = 2.6

Therefore Equilibrium price P = 200 dollars

equilibrium demand of million e-readers per yer = 2.6 mi/yr

8 0
3 years ago
What is 87*798 and plz give me details thx.
Archy [21]
87 times 798 is 69,426
7 0
3 years ago
Will mark brainliest!! factor the following equation: f(x)=3x²+7x+2​
jeka94

Answer:

(x + 2) (3x + 1)

Step-by-step explanation:

3x² + 7x + 2

3x² + 6x + x + 2

3x(x + 2) + 1(x + 2)

<em><u>(x + 2) (3x + 1)</u></em>

4 0
3 years ago
Read 2 more answers
A plot of land has 614 blades of grass. If the plot of land has
Temka [501]

Answer:

   9.74 i believe

Step-by-step explanation:

9.74 blades of grass

8 0
3 years ago
Which line has the following intercepts?
Inga [223]
B seems like the closest one, none of them have the y-intercept of (0,-1.2) but 7x-6y=3 had the x-intercept and a y-intercept of (0,-1/2) which is the closest one to -1.2
3 0
3 years ago
Read 2 more answers
Other questions:
  • On a blueprint, the scale indicates that 6 cm represent 15 feet. What is the length of a room that is 9 cm long and 4 cm wide on
    12·1 answer
  • Why is the product of a rational number and an irrational number irrational
    5·1 answer
  • A pan is heated to 377°F, then removed from the heat and allowed to cool in a kitchen where the room temperature is a constant 7
    11·1 answer
  • At noodles &amp; company restaurant, the probability that a customer will order a nonalcoholic beverage is .48. Find the probabi
    10·1 answer
  • Gffffffffffffffffffffffffffffffffffffffffffffffffffffff,,,,
    8·1 answer
  • Find the unit rate
    12·1 answer
  • A right triangle has one angle that measure 23o. The adjacent leg measures 27.6 cm and the hypotenuse measures 30 cm.
    9·1 answer
  • Help me please eeeee asap
    8·1 answer
  • Pls answer asap :)
    13·2 answers
  • Please help as soon as possible!!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!