+0  
 
0
600
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avatar+176 

https://vle.mathswatch.co.uk/images/questions/question15705.png

 Nov 7, 2017
 #1
avatar+578 
0

ehm wats da questien

 Nov 7, 2017
 #2
avatar+98044 
+1

We can solve this

 

5x - 4  =  3M

3x + 8  = M

 

Multiply  the second equation by 3 

 

5x  - 4  =  3M

9x + 24  = 3M

 

The right side is equal, so set the equations equal

 

5x  - 4  =  9x  + 24     add 4 to both sides, subtract 9x from both sides

 

-4x  =  28      divide both sides by -4

 

x  =  -7

 

 

cool cool cool

 Nov 7, 2017

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