09-09-2016
Mathematics

contestada

3 (7-9x)-5 (5x+1)=-8 (9x-4)

Respuesta :

09-09-2016

open the equation
21-27x-25x-5= -72x+32
collect like terms
21-5-27x-25x=-72x+32
16-52x=-72x+32
collect like terms
-52x+72x=32-16
-20x=16
divide both sides by -20
x= -16/20
divide into the lowest term
x= -4/5

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