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
Fittoniya [83]
3 years ago
13

How do you solve -2/3x + 5 = 20 - x

Mathematics
1 answer:
Monica [59]3 years ago
8 0

-2/3x + 5 = 20 - x

subtract 5 from each side

-2/3 x = 15 -x

add x to each side

-2/3 x +x = 15

get a common denominator of 3 for the x terms

-2/3x + 3/3 x =15

combine like terms

1/3 x = 15

multiply by 3 on each side

x = 45

Answer: x=45

You might be interested in
Fill in the missing blinks
Natalka [10]
3-4: Definition of supplementary angles
5: Simplify
4 0
3 years ago
The amount of carbon-14 in animal bones after t years is given by P(t)=P[0]e^(-0.00012097t). A bone has lost 37% of its carbon-1
Vesna [10]
63 years :) Hope this helps ;D
8 0
3 years ago
Of the 240 available seats for a concert, 63 seats were reserved. What fraction of seats was reserved? Write your answer in simp
Olin [163]
63/240 seats or 21/80
The greatest common denominator is 3, so you would divide both by 3.
6 0
3 years ago
The difference of two numbers is 685. The smaller of the numbers is 262. What is the other number?
jeyben [28]

Step-by-step explanation:

<em>Let </em><em>the </em><em>two </em><em>numbers </em><em>be </em><em>x </em><em>and </em><em>y </em>

<em>x </em><em>-</em><em> </em><em>y </em><em>=</em><em> </em><em>6</em><em>8</em><em>5</em>

<em>Let </em><em>the </em><em>smaller </em><em>number </em><em>be </em><em>y </em>

<em>x </em><em>-</em><em> </em><em>2</em><em>6</em><em>2</em><em> </em><em>=</em><em> </em><em>6</em><em>8</em><em>5</em>

<em>x </em><em>=</em><em> </em><em>6</em><em>8</em><em>5</em><em> </em><em>+</em><em> </em><em>2</em><em>6</em><em>2</em>

<em>Therefore </em><em>x </em><em>=</em><em> </em><em>9</em><em>4</em><em>7</em>

3 0
3 years ago
Read 2 more answers
Philip can do 15 math problems in 5 minutes. How long will it take him to do 21 problems?
ZanzabumX [31]

Answer:

It takes him 7 minutes to do 21 problems

Step-by-step explanation:

15/5=3

He did 21 problems

So you would then do...

21/3=7

6 0
3 years ago
Other questions:
  • A cone has radius 5x cm and a height 12x cm.A sphere has radius r cm.The cone has the same total surface area as the sphere.Show
    5·1 answer
  • 8(1 - 5x) + 5 = -2 + 5x
    6·1 answer
  • 3. If a triangle has a height of 14 inches and a base of 9 inches, what's its area?
    12·1 answer
  • Use your device keyboard to enter x+1= 7 in the box.<br>Check Answer​
    9·1 answer
  • Find the product. 2 1/4⋅1 2/3 Write the answer as a mixed number.
    14·2 answers
  • Helppppppppppppppppppppppppppppppppppppp
    7·1 answer
  • Hii!! Please help me out. To help me understand the answer just say exactly which part I'm putting the number in and stuff.
    13·1 answer
  • HELP ME PLEASE ASAP
    9·1 answer
  • At the start of 2014, Mike's car is worth 12000. the car depreciates by 30 percent every year. how much is his car worth in 2017
    15·1 answer
  • Help picture below problem 12
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!