Weegy: 0 > –3x – 2x
-3x - 2x 0;
x > 0/5;
x > 0
User: Find the value of x in the equation 2(x – 3) + 5x = 5(2x + 6).
A. –2
B. 2
C. –12
D. 12
Weegy: 2(x – 3) + 5x = 5(2x + 6) ;
2x - 6 + 5x = 10x + 30 ;
7x - 6 = 10x + 30 ;
7x - 10x = 30 + 6 ;
-3x = 36 ;
x = 36/-3 ;
x = -12
User: Solve the system of equations 3r – 4s = 0 and 2r + 5s = 23.
A. r = 4, s = 3
B. r = –12, s = 9
C. r = –1, s = –3
D. r = 12, s = 0
(More) 3
3r – 4s = 0 and 2r + 5s = 23 ;
(3r – 4s = 0) * 2 ;
6r - 8s = 0;
(2r + 5s = 23) * 3 ;
6r + 15s = 69;
(6r + 15s = 69) - (6r - 8s = 0) ;
23s = 69 ;
s = 69/23 ;
s = 3 ;
3r – 4(3) = 0 ;
3r - 12 = 0 ;
3r = 12 ;
r = 12/3 ;
r = 4 ;
Solution set: (r = 4, s = 3)
Added 2 hours 47 minutes ago|11/16/2018 2:40:46 AM
This answer has been confirmed as correct and helpful.
