P0inkjaybean
P0inkjaybean P0inkjaybean
  • 01-10-2016
  • Mathematics
contestada

how can i solve this equation , is it an idenity or not ?: 15q-3(4q-6)=3q 9-9q

Respuesta :

ClutchMode
ClutchMode ClutchMode
  • 01-10-2016
15Q-12Q-18=-6Q+9
3Q-18=-6Q+9
+6Q     +6Q
9Q-18=9
     +18  +18


9Q=27
/9    /9

Q=3
Answer Link
dancer2416
dancer2416 dancer2416
  • 02-11-2018

15q - 3 (4q - 6)=3q + 9 - 9q

15q - 12q + 18 = 3q + 9 - 9q

3q + 18 = -6q + 9             Hint: subtract 3q and -6q

18 = -9q + 9                     Hint: add -9 + 9= -18

=18 /-18q                      

= -1q

Answer Link

Otras preguntas

how do I solve for x in x^2 - 8x + 12 = 0 using factoring?
what years did the cattle drives take place from
the initial population of a town is 2600, and it grows with a doubling time of 10 years. what will the population be in 8 years?
Which fraction is equivalent to 2/7
by what length is is 0.5 m less than 10.05
how is aluminium foil able to reduce heat loss through the walls of a house
what is the largest prime factor of 34
what is the formula for a cylinder and a circle?
a sporting goods store offers a 40% discount on all gulf clubs. rocco spent 20% of the money in his savings account on a golf putter. he paid $48 for the putter
What changes were made in Utah during World War 1?