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choli [55]
2 years ago
15

Determine the number of solutions for this equation: 4x-1=2[2x-1]

Mathematics
2 answers:
krek1111 [17]2 years ago
7 0

Answer:

See the attachment and Mark as brainleist please.

oksian1 [2.3K]2 years ago
6 0

Answer:

0= -1 impossible.

Step-by-step explanation:4x-1=2[2x-1]

4x-1=2×2x-2×1

4x-1=4x-2

4x-4x=-2+1

0=-1

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solve this system of linear equations. Separate the X- and Y- values with a comma. -9x+2y=-16 19x+3y=41​
Serjik [45]

Answer:

(2, 1)

Step-by-step explanation:

The best way to do this to avoid tedious fractions is to use the addition method (sometimes called the elimination method).  We will work to eliminate one of the variables.  Since the y values are smaller, let's work to get rid of those.  That means we have to have a positive and a negative of the same number so they cancel each other out.  We have a 2y and a 3y.  The LCM of those numbers is 6, so we will multiply the first equation by a 3 and the second one by a 2.  BUT they have to cancel out, so one of those multipliers will have to be negative.  I made the 2 negative.  Multiplying in the 3 and the -2:

3(-9x + 2y = -16)--> -27x + 6y = -48

-2(19x + 3y = 41)--> -38x - 6y = -82

Now you can see that the 6y and the -6y cancel each other out, leaving us to do the addition of what's left:

-65x = -130 so

x = 2

Now we will go back to either one of the original equations and sub in a 2 for x to solve for y:

19(2) + 3y = 41 so

38 + 3y = 41 and

3y = 3.  Therefore,

y = 1

The solution set then is (2, 1)

6 0
3 years ago
Read 2 more answers
Quick I need some help! Simplify to create an equivalent expression. ( photo linked)
Sophie [7]

Answer:

B. 31r − 71 is the answer!

5 0
3 years ago
X+y=8 and 3x+2y=14 for soliving system
kumpel [21]
X+y=8
multiply the first equation by 3 to get rid of x
3x+3y=24
3x+2y=14
subtract equation 1 from 2
y=10
substitute to find the value of x
x+10=8
x=-2


7 0
3 years ago
Sorry the question is nothing skip it
diamong [38]

Answer: Good morning I love your profile photo

Step-by-step explanation:

4 0
2 years ago
Solve v=1/3 bh for b
katovenus [111]

Answer:

3v/h = b

Step-by-step explanation:

1/3 is a given fraction and to get rid of it you must multiply by it's reciprocal of 3/1 or 3. You will also multiply the other side by 3

3 * v = (1/3 bh) * 3     --> 3v = bh

divde both sides by h and you get 3v over h = b

3v/h = b

Hope this helps!

3 0
2 years ago
Read 2 more answers
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