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torisob [31]
3 years ago
13

Solve: 4m- 4 - 8 = -2m + 12

Mathematics
1 answer:
andriy [413]3 years ago
3 0

Answer:

4

Step-by-step explanation:

4m-4-8=-2m+12

4m-12=-2m+12

Add 2m on both sides:

4m+2m-12=-2m+2m+12

6m-12=12

Add 12 on both sides:

6m-12+12=12+12

6m=24

Divide:

m=4

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5x-(x+3)=1/3 (9x+18)-5<br> Please show me step by step
zzz [600]

Step-by-step explanation:

5x-(x+3)=1/3(9x+18)-5

5x-x+3=3x+6-5

1/3 multiplied by 9/1 is three because if you take away the ones and put your problem like this: 9/3, you'll get 3.

1/3 multiplied by 18/1 is six because if you take away the ones and switch to division, it'll look like this: 18/3. 18/3 is 6.

5x-1x+3=3x+6-5

If a variable is alone, you should - in this case - put a one before it, but if the variable is alone you should know that it's automatically a one.

4x+3=3x-1

6-5=1 Simple math problem, probably self explanatory

4x+3=3x-1

Subtract 3x from 4x and you'll get 1x because 4-3 is 1.

1x+3=-1

Then you add 3 to -1 which is 2.

The answer is 1x=2

Or you could've done:

4x+3=3x-1

-4x    -4x

    3=-1x-1

 +-1    +-1

2=1x

It's the same answer, but all I did was subtract the 4x from the 4x and 3x.

3 0
3 years ago
I need help. what is the slope?<br> (The bottom one says : (-1, -6)
ch4aika [34]

Answer:

I believe it would be -11/4.

8 0
3 years ago
Read 2 more answers
On Gavin's math test, 3/8 of the questions are division problems. Of the division problems, 4/9 of the problems he got incorrect
deff fn [24]
Something is strange in the wording of the question.  "Of the division problems, 4/9 of the problems he got incorrect.  What fraction of the division problems did Gavin get incorrect?" :)  Well 4/9 of course.  One statement answers another.  Maybe they wanted the fraction of those wrong answers were in relation to the entire test???


\frac {3}{8} * \frac {4}{9} = \frac {12}{72} = \frac {1}{6}

...............
6 0
3 years ago
Need help with this questions
S_A_V [24]

The answer would be the balance

5 0
3 years ago
What value of m makes this a true number sentence? <br><br> m+3+m=3
MrRa [10]
The correct value for m is 0(zero). :)
8 0
3 years ago
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