whattt whattt
  • 15-04-2017
  • Mathematics
contestada

An equation is shown below.
ax+8=3x+b
List values of b for which x=3 is the solution of the equation.

please help!!

Respuesta :

irspow
irspow irspow
  • 15-04-2017
ax+8=3x+b  isolate b by subtracting 3x from both sides...

b=ax-3x+8

b=x(a-3)+8 if x=3 then:

b=3a-9+8

b=3a-1


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