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
tankabanditka [31]
3 years ago
11

How do you solve 3x+7=x

Mathematics
2 answers:
vredina [299]3 years ago
8 0
3x + 7 = x

First, subtract 3x from both sides. / Your problem should look like: 7 = x - 3x
Second, simplify x - 3x to -2x. / Your problem should look like: 7 = -2x
Third, divide both sides by -2. / Your problem should look like: \frac{7}{-2} = x
Fourth, simplify \frac{7}{-2} to -\frac{7}{2} / Your problem should look like: - \frac{7}{2} = x
Fifth, switch sides. / Your problem should look like: x = -\frac{7}{2}

Answer as fraction: -\frac{7}{2}
Answer as decimal: -3.5


Marizza181 [45]3 years ago
7 0
3x + 7 = x
3x - x = -7
2x = -7
x = - 7/2
x = -3.5
You might be interested in
Can someone help? will mark brainlest
Crank
I need help my self lol XD
8 0
2 years ago
Read 2 more answers
#11 how do you do this someone please help me
stiv31 [10]
11.) You pay 620 to rent a hotel room for 4 weeks. Total cost include an initial deposit plus a weekly fee of 125. 
a)y=(rate per week)x+deposit
620=125x+deposit
620=125(4)+deposit
620=500+deposit
620-500=deposit
120=deposit
y=125x+120
b) y-intercept is the deposit, at 120
4 0
3 years ago
A = 1/2bh<br> b= 12<br> h = 7<br> how to I go about getting this answer?
Finger [1]
I know it is a triangle so 12×7=84÷2=42
4 0
3 years ago
Show all steps please
OLga [1]
9-8x\geq0\ \ \ |subtract\ 9\ from\ both\ sides\\\\-8x\geq-9\ \ \ \ |change\ signs\\\\8x\leq9\ \ \ \ |divide\ both\ sides\ by\ 8\\\\x\leq9\\\\  |9-8x|=\left\{\begin{array}{ccc}9-8x&for\ x\leq9\\8x-9&for\ x \ \textgreater \  9\end{array}\right

1^o\ x\in(-\infty;\ 9]\to|9-8x|=9-8x\\\\9(9-8x)=2x+3\\81-72x=2x+3\ \ \ \ |subtract\ 81\ from\ both\ sides\\-72x=2x-78\ \ \ \ |subtract\ 2x\ from\ both\ sides\\-74x=-78\ \ \ \ |divide\ both\ sides\ by\ (-74)\\\\x=\dfrac{-78:2}{-74:2}\\\\\boxed{x=\frac{39}{37}}\in(-\infty;\ 9]

2^o\ x\in(9;\ \infty)\to|9-8x|=8x-9\\\\9(8x-9)=2x+3\\72x-81=2x+3\ \ \ \ |add\ 81\ to\ both\ sides\\72x=2x+84\ \ \ \ |subtract\ 2x\ from\ both\ sides\\70x=84\ \ \ \ \ \ |divide\ both\ sides\ by\ 70\\\\x=\dfrac{84:14}{70:14}\\\\x=\dfrac{6}{5}\notin(9;\ \infty)\\\\\\Answer:\boxed{x=\frac{39}{37}}
6 0
3 years ago
Write an expression for "the difference of 6 and k.
zloy xaker [14]

Answer: 6 - k

Step-by-step explanation:

Difference means subtraction

6 0
3 years ago
Other questions:
  • About how many pints are there in 445 ounces
    7·2 answers
  • The scissor-tailed flycatcher is Oklahoma's state bird. If the combined weight of
    7·1 answer
  • Evaluate a² + ab -b² +5 when a =2 and b = 3. is the answer A. 0 B. 1 C. 6 D. 11
    5·1 answer
  • Answer correctly for brainliest and also get a thanks ! :) please don't answer if you don't know it !
    10·1 answer
  • In ADEF, the measure of
    15·1 answer
  • A horizontal line goes through the point (–7,10).
    8·2 answers
  • The Barrel in Problems 4 is 5 feet long and the radius of its base is 1.5 feet. ​
    6·1 answer
  • Determine the slope for the line that passes through the points given by the table of values.
    12·1 answer
  • Divide. Write your answer in simplest form. 5/8 / 3/10
    9·2 answers
  • Long ago, in some town, a phone number consisted of a letter followed by 3 digits (e.g. K651). How many
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!