SOLUTION: Hi! For this it says to solve and cheack each of the following. The problem is: 3a -2 - = - The answer that I got for it was (a), but I need help checking it, 7 5 please h

Algebra ->  Real-numbers -> SOLUTION: Hi! For this it says to solve and cheack each of the following. The problem is: 3a -2 - = - The answer that I got for it was (a), but I need help checking it, 7 5 please h      Log On


   

Question 130922This question is from textbook algebra
: Hi! For this it says to solve and cheack each of the following.
The problem is:
3a -2
- = - The answer that I got for it was (a), but I need help checking it,
7 5 please help, Thank You=)
 This question is from textbook algebra

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
(3a/7) = (-2/5)
Cross-multiply to get:
15a = -14
a = -14/15
============
Checking:
[3(-14/15)/7] = -2/5
[(3*-14) / (15*7)] = -2/5
Cancel to get:
-2/5 = -2/5
================
Cheers,
Stan H.5