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
Greeley [361]
2 years ago
10

Solve : -7= 2x -7 x=?​

Mathematics
2 answers:
tresset_1 [31]2 years ago
8 0
X would equal 0.
-7=2x-7
You would add 7 to both sides and both of the seven would cross out leaving you with 0=2x
You’d divided both sides by 0 and x would be 0.
Katen [24]2 years ago
5 0

Answer:

0

Step-by-step explanation:

-7=2x-7

+7     +7

0=2x

x=0

You might be interested in
Help please I will mark brainlest
rodikova [14]

Answer:

5\sqrt{7}

Step-by-step explanation:

\frac{30\sqrt{14} }{6\sqrt{2} }

Cancel out 6 in both numerator and denominator.

\frac{5\sqrt{14} }{\sqrt{2} } Rationalize the denominator of \frac{5\sqrt{14} }{\sqrt{2} } by multiplying the numerator and denominator by \sqrt{2}.

\frac{5\sqrt{14}\sqrt{2}  }{(\sqrt{2})^{2}  }

The square of  \sqrt{2} is 2

Factor 14=2 × 7. Rewrite the square root of the product \sqrt{2x7} as the product of square roots \sqrt{2}\sqrt{7}.

\frac{5\sqrt{2}\sqrt{7}\sqrt{2}   }{2}

Multiply \sqrt{2} and \sqrt{2} to get 2.

\frac{5x2\sqrt{7} }{2}

Cancel out 2 and 2.

5\sqrt{7}

Hope it helps and have a great day! =D

7 0
2 years ago
Read 2 more answers
Do you know if not don't answer What is 3x+1/5y=7
Mrac [35]
You will have to use trial and error in order to find the values for x and y.
Just keep plugging values until you get 7.

I found x is equal to 2 and y is equal to 5.

3(2) + (1/5)5 = 7
6 + 5/5 = 7
6 + 1 = 7
7 = 7
3 0
3 years ago
Solve the equation. Round to the nearest hundredth. Show work.
denis-greek [22]

Answer:

Final answer is approx x=-0.66.

Step-by-step explanation:

Given equation is 5^{-2x-1}=4^{4x+3}.

Now we need to solve equation 5^{-2x-1}=4^{4x+3} and round to the nearest hundredth.

5^{-2x-1}=4^{4x+3}

\log(5^{-2x-1})=\log(4^{4x+3})

(-2x-1)\log(5)=(4x+3)\log(4)

-2x \log(5)- \log(5)=4x \log(4)+3 \log(4)

-2x \log(5) -4x \log(4)=3 \log(4) +\log(5)

x=\frac{\left(3\log(4)+\log(5)\right)}{\left(-2\log(5)-4\log(4)\right)}

Now use calculator to calculate log values, we get:

x=-0.65817959094

Round to the nearest hundredth.

Hence final answer is approx x=-0.66.

8 0
3 years ago
The graph of the line with the equation y = 1/2 * x + 4 crosses the x-axis at which of the following
svlad2 [7]

Answer:

Step-by-step explanation:

so we are looking for the x intercept (where the line crosses the x axis).

to do this, we sub in 0 for y and solve for x.

y = 1/2x + 4....sub in 0 for y

0 = 1/2x + 4

-1/2x = 4

x = 4 * -2

x = -8 <=== so it crosses the x axis at (-8,0)

5 0
3 years ago
Is 2/3 equivalent to 1/3 if it isn't then which is bigger plz help and will give a thanks
lina2011 [118]
Compare the enumerators because they have the same denominator. 2 is large than 1 so 2/3 is larger than 1/3

Hope this helps!
7 0
3 years ago
Read 2 more answers
Other questions:
  • Kelly gets paid $68 for watching her neighbors dogs for 10 days how much does kelly earn per day
    6·2 answers
  • Y= 5x-13 find x and y intercepts
    5·1 answer
  • Which graph shows a set of ordered pairs that represents a function?
    6·1 answer
  • Jenny buys a new shirt that costs $22. If sales tax is 8%, how<br> much will the tax be?
    8·2 answers
  • Please help! Will mark brainliest
    12·1 answer
  • WILL MARK YOU BRAINLIEST HELP ASAP
    6·1 answer
  • Pls help hurry pls!!!!​
    8·1 answer
  • Task: You and your friend were taking turns rolling a die when you thought of a game: If a one is rolled by either player, you p
    6·1 answer
  • A jewelry store recently sold 24 bracelets and 28 other pieces of jewelry. Based on past data, how many of the next 65 pieces of
    14·1 answer
  • MATH
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!