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# Explain this to me please.

+6
146
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$$\frac{m-3}{4}=\frac{m+1}{3}$$

xRainexSiderisx  Mar 9, 2017

#1
+79894
+10

[m - 3] / 4   = [m + 1 ] / 3        cross-multiply

3 [ m - 3 ]  = 4 [ m + 1]       simplify

3m - 9    =  4m + 4     add 9 to both sides, subtract 4m from both sides

-1m   =  13          divide both sides by -1

m = -13

CPhill  Mar 9, 2017
Sort:

#1
+79894
+10

[m - 3] / 4   = [m + 1 ] / 3        cross-multiply

3 [ m - 3 ]  = 4 [ m + 1]       simplify

3m - 9    =  4m + 4     add 9 to both sides, subtract 4m from both sides

-1m   =  13          divide both sides by -1

m = -13

CPhill  Mar 9, 2017

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