BTSJoonie
BTSJoonie BTSJoonie
  • 03-11-2017
  • Mathematics
contestada

2x+8=7x-12 || -m/4+5=2 || 3x-8=-17 ||

Respuesta :

randgh
randgh randgh
  • 03-11-2017
2x+8=7x-12    we put the x in a side  and the number in the other side 
5x = 20 
x= 20/5 = 4

 -m/4+5=2
 common denominator
-m /4  + 20/4 = 2/4   
-m +20 = 2

m = 20-2 =18

3x-8=-17

3x = -17 +8 

3x = -9 

x= -9/3 = -3 
Answer Link

Otras preguntas

Which words in the sentence are the complete gerund phrase? The ancient Egyptians avoided killing any sacred animals. A.killing any sacred animals B.avoided k
In approximately two to three sentences, explain how you would solve for x in the following equation: 14(x-4) = 56
How did the Chinese government and economy develop and change over the time period of the three dynasties?
A planet has an average distance to the sun of 0.66 AU. How do you calculate it?
How is using a conversion factor different from using proportions to convert measurement units? Explain which is easier and why.
waht is a nuclar war head
What tools might be used to study a stink hole?
Richard is conducting an experiment. Every time he flips a fair two-sided coin, he also rolls a six-sided die. What is the probability that the coin will land o
A helicopter hovers at an altitude that is 1000 feet above a mountain of altitude 5210 feet. A second, taller peak is viewed from both the mountaintop and the
what marked the end of the progressive era