How do you solve $- 10 = 9 m - 13 - 7 m$ $-10 = 9m -13 -7m$ ?

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Answer 1 · 2016-05-31T06:01:29

$m = \frac{3}{2} = 1.5$ $m=3/2=1.5$

$- 10 = 9 m - 13 - 7 m$ $-10=9m-13-7m$

$- 10 = 9 m - 7 m - 13$ $-10=9m-7m-13$

$- 10 = 2 m - 13$ $-10=2m-13$

Now add $13$ $13$ to both sides:

$- 10 + 13 = 2 m - 13 + 13$ $-10color(red)(+13)=2m-13color(red)(+13)$

$-10+13=2mcancel(-13)cancel(+13)$

$3=2m$

Divide both sides by $2$ :

$3/color(red)(2)=(2m)/color(red)(2)$

$3/2=(cancel2m)/cancel2$

$3/2=m$

$1.5=m$

How do you solve -10 = 9m -13 -7m−10=9m−13−7m-10 = 9m -13 -7m?