GavitoAnd GavitoAnd
  • 02-04-2014
  • Mathematics
contestada

How do I solve this equation?
If 3t-7=5t then 6t=

a 21
b-7
c-21
d-42

Respuesta :

taskmasters
taskmasters taskmasters
  • 08-09-2015
If 3t – 7 = 5t, then 6t =
Let’s first solve the first equation:
=> 3t – 7 = 5t
=>  3t – 5t = 7
=> -2t = 7
=> t = 7 / -2
=> t = -7/2

If t = -7/2 , then 6t = 6 (-7 / 2)
=> t = -42/2
=>  t = - 21
Thus, the value of t in If 3t – 7 = 5t is -7/2
and the value of t in 6t = is -21
The answer is C.




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