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Reika [66]
3 years ago
13

Explain how you would solve 5x - 3 = 9. (there should be a minimum of 2 complete sentences). *

Mathematics
2 answers:
SpyIntel [72]3 years ago
7 0
Haha, you first start off with adding 3 to both sides, cancelling the -3, and adding it to 9. you end up with 5x=12, in which you divide both sides by 5. you get 2 and 2/5 or 12/5! hope that helps :)
Mrrafil [7]3 years ago
4 0

Answer: First, you would need identify what needs to be moved in order for the coefficient (5) and the variable x to be alone on one side of the equal sign.You'll see that -3 must be moved across the equal sign,resulting in 5x standing alone on one side. -3 has to be canceled out so you +3 to make it zero and +3 on the opposite side of the equal sign. The equation would now be 5x=12 because 9+3 is equivalent to 12.Now you perform division, dividing both sides by 5 for the x(variable) to stand alone. The answer is x= twelve-fifths(12/5).Then you will obviously you plug it back in to ensure of a correct answer.

Step-by-step explanation:Answer: First, you would need identify what needs to be moved in order for the coefficient (5) and the variable x to be alone on one side of the equal sign.You'll see that -3 must be moved across the equal sign,resulting in 5x standing alone on one side. -3 has to be canceled out so you +3 to make it zero and +3 on the opposite side of the equal sign. The equation would now be 5x=12 because 9+3 is equivalent to 12.Now you perform division, dividing both sides by 5 for the x(variable) to stand alone. The answer is x= twelve-fifths(12/5).Then you will obviously you plug it back in to ensure of a correct answer.

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Angle 1 and Angle 2 are complimentary angles. Find x and the measure of Angle 1.
Bad White [126]

Answer:

x=12 pls give brainliest

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Help again and thanks..........
LenKa [72]

Answer:

  • a = $8
  • s = $5

Step-by-step explanation:

When the coefficients don't lend themselves to solution by substitution or elimination, then Cramer's Rule can be useful. It tells you the solutions to

  • ax +by = c
  • dx +ey = f

are ...

  • ∆ = bd -ea
  • x = (bf -ec)/∆
  • y = (cd -fa)/∆

Using that rule here, we find ...

  ∆ = 5·3 -6·2 = 3

  a = (5·54 -6·41)/3 = 5·18 -2·41 = 90 -82 = 8

  s = (41·3 -54·2)/3 = 41 -18·2 = 5

This math can be performed in your head, which is the intent of formulating the rule in this way.

_____

Similarly, if you expect the solutions to be small integers (as here), then graphing is another viable solution method.

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<em>Comment on the question</em>

We're sad to see than only 16 tickets were sold to the two performances by the symphonic band.

6 0
2 years ago
Help me please <br><br> All postulates have been proven to be true ?<br><br> True or False
sashaice [31]

fales that is never gonna be proofen right


4 0
2 years ago
Read 2 more answers
Angela was looking at 17 different colors to paint her bedroom. She liked about one fourth of the colors. About how many colors
dusya [7]

Answer:4.25, so about 4 or 5

Step-by-step explanation:

1/4 = x/17

-Cross multiply-

4*x = 1*17

4x = 17

-divide-

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7 0
3 years ago
Solve quickly please.
lys-0071 [83]

Find the change between the first two sets:

12-9 = 3

14.4 - 10.8 = 3.6

3.6/3 = 1.2

Now find the change between the last two sets:

12 - -3 = 15

14.4 - 3.6 = 10.8

10.8/15 = 0.72

1.2 does not equal 0.72 so the answer is No

4 0
2 years ago
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