marre2119 marre2119
  • 20-10-2014
  • Mathematics
contestada

how do you solve 8(3a+6)=9(2a-4)

Respuesta :

luana
luana luana
  • 20-10-2014
[tex]8(3a+6)=9(2a-4)\ \ \ \ | omiting\ the\ bracket\\\\ 24a+48=18a-36\ \ \ \ | subtract\ 18a\\\\ 6a+48=-36\ \ \ \ | subtract\ 48\\\\ 6a=-84\ \ \ \ | divide\ by\ 6\\\\ a=-14[/tex]
Answer Link
kezzy00010
kezzy00010 kezzy00010
  • 20-10-2014
Expand the brackets so you get
24a+48=18a-36

then you take the smaller value of a from both sides which in this case is 18a
so then you are left with
6a+48=-36
then to get 6a on its own, you take away 48 from both sides
6a=-84
then you divide both sides by 6 to get the value of a
a=-14
Answer Link

Otras preguntas

3x - 3y = 24 (for x)
Question 8 Solve for b: (1 b-b 2 h 1 ▷m
Which of the following would be part of a customer relationship management program? (Select all that apply.) Targeting promotions to a customer based on previou
If g(x) = 2x + 1 and fog (x)=6x-2, find f(x).​
Line m is perpendicular to the line that passes through the points (5,6) and (6,10). What is the slope of line m?
1. Discuss the benefits of observing good safety measures in relation to an increase in productivity within a pharmaceutical laboratory
Which table of ordered pairs represents a proportional relationship? X 0 5 10 X 2 4 6 X 1 2 3 X 1 3 4 y 10 20 30 y 10 20 30 1234 y y 4 10 13
Application software provides environment to run system software.( yes or no)​
Which strategy does the speaker use to develop a central idea of "Money to Us Is of No Value"?
Find the slope of the line graphed below