kangogauri kangogauri
  • 01-04-2015
  • Mathematics
contestada

2[tex] 3^(x+7) = 9^(x-1)[/tex]

Respuesta :

Panoyin
Panoyin Panoyin
  • 03-04-2015
3(x + 7) = 9(x - 1)
3(x) + 3(7) = 9(x) - 9(1)
  3x + 21 = 9x - 9
- 3x          - 3x    
          21 = 3x - 9
        + 9         + 9
         30 = 3x
          3      3
         10 = x
Answer Link

Otras preguntas

need help fast what are all the solution to this problem
what is the square root of 141?
The book shows how to add and subtract binary and decimal numbers. However, other numbering systems are also very popular when dealing with computers. The octal
What is the formula for Slope-Intercept Form of the Line
In 1803, the United States bought Louisiana Territory from France. The deal, known as the Louisiana Purchase, doubled the size of the U.S. and opened a new fro
Two men who signed the Declaration of Independence went on to become U.S. presidents. Who were they?
Name the singer/songwriter of “On the 4th of July.”
United States inventor (born in Scotland) of the telephone (1847-1922)
When were fireworks first used in an official Fourth of July celebration?
Which geological features did Sally Ride observe from orbit?