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Dmitriy789 [7]
3 years ago
13

Evaluate the following equation for x. 2/5x = −20

Mathematics
1 answer:
kenny6666 [7]3 years ago
6 0
2/5x=-20
x=-50
Explanation:
Whenever you take the 2/5 and divide it from -20 you are left with x=-50. Therefore, the value for x is -50.
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What is the solution of the system?
gulaghasi [49]

Answer: \bold{\text{b.}\bigg(4,-\dfrac{1}{2}\bigg)}

<u>Step-by-step explanation:</u>

x - 2 = -4y  →  x = 2 - 4y

3x + 2y = 11  

3(2 - 4y) + 2y = 11     <em>replaced "x" with (2 - 4y)</em>

6  - 12y + 2y = 11     <em>distributed "3" on left side</em>

<em> </em>6   - 10y        = 11      <em>added like terms (-12y + 2y)</em>

     - 10y        =  5      <em>subtracted "6" from both sides</em>

          y         = -\dfrac{1}{2}       <em>divided both sides by -10</em>


Next, solve for x:

x = 2 - 4y

   = 2 - 4(-\frac{1}{2} )

   = 2 + 2

   = 4

7 0
3 years ago
There are 176 gallons of gas in tank a. There are 19 gallons less gas in tank b. How many gallons of gas are there in take b
Vilka [71]

Answer:157

Step-by-step explanation:

8 0
3 years ago
3 - (2x - 5) &lt; -4(x + 2)​
DIA [1.3K]

Answer:

x < -8

Step-by-step explanation:

3 - (2x - 5) < -4(x + 2)​

-2x + 8 < -4x - 8

-2x < -4x - 16

2x < -16

x < -8

Best of Luck!

7 0
3 years ago
I need help pleaseee
vlada-n [284]

Answer:

20

Step-by-step explanation: multiply

4 0
3 years ago
Find the slope of the line that goes through (-4,5) and (3,-1)
scZoUnD [109]
Slope = (-1 - 5)/(3 + 4) = -6/7

answer
-6/7
4 0
4 years ago
Read 2 more answers
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