leannaadrian leannaadrian

11-04-2018
Mathematics

contestada

Can anyone help me with this. It asks to solve and check your answer.

Can anyone help me with this It asks to solve and check your answer class=

Respuesta :

mkryukova19 mkryukova19

11-04-2018

4m-21=3(5m-1)
4m-21=15m-3
-21+3=15m-4m
-18=11m
m= - 18/11

check
4*(-18/11)-21=3(5*(-18/11)-1)
-72/11-(21*11)/11=3(-90/11-11/11)
-72/11-231/11=3*(-101/11)
-303/11≡ -303/11 true,

so
m= - 18/11 is a solution

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