Question #ffde9

1 Answer
Jun 20, 2017

See the explanation

Explanation:

It all depends on the correct interpretation of the question. I have given two interpretations to demonstrate some mathematical processes. Even if they are not the correct solutions color(magenta)("the methods are important.")the methods are important.

You state m+2/3+1/4m-1m+23+14m1 and you use the word 'solve'. This implies that you wish to determine the value of mm.

As there is no equals sign it is not possible to 'solve' for mm

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color(blue)("Taking the work on from your part 'solution'")Taking the work on from your part 'solution'

color(green)(12m+8=3m-1)12m+8=3m1

subtract color(red)(3m)3m from both sides

color(green)(12mcolor(red)(-3m)+8" "=" "3mcolor(red)(-3m)-1)12m3m+8 = 3m3m1

color(green)(" "9m" "color(white)(.)+8" "=" "0" "-1) 9m .+8 = 0 1

Subtract color(red)(8)8 from both sides

color(green)(9m+8color(red)(-8)" "=" "-1color(red)(-8)9m+88 = 18

color(green)(9m" "+0" "=" "-9)9m +0 = 9

Divide both sides by color(red)(9)9

color(green)(9/(color(red)(9)) m" "=" "(-9)/(color(red)(9)))99m = 99

but 9/9=1 and (-9)/9=-199=1and99=1

color(green)(1m=-1)1m=1

but writing 1m1m is bad practice so write this as just mm

m=-1m=1
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color(blue)("Assuming that we have an expression and not an equation")Assuming that we have an expression and not an equation

An expression does not have an equals sign in it.

Simplifying the expression -> m+2/3+1/4m-1m+23+14m1
Note that mm is the same as 1m1m which is also the same as 4/4m44m

m+2/3+1/4m-1" "->" "4/4m+2/3+1/4m-1m+23+14m1 44m+23+14m1

" "->" "4/4m+1/4m+2/3-1 44m+14m+231

" "->" "5/4m+2/3-1 54m+231

Note that -11 is the same as -3/333

5/4m+2/3-1" "->" "5/4m+2/3-3/354m+231 54m+2333

" "->" "5/4m-1/3 larr" Simplified" 54m13 Simplified