Решите уравнения.
1) 7-2 (4-х) =-1
2) 2- (х+1) =-2
3) -3 9х+5) =2х
4) 12-3 (х+4) =9
5) (х+4) -4 (х+1) =1
Срочно, 15 балов даю!!
1) 7-2 (4-х) =-1
2) 2- (х+1) =-2
3) -3 9х+5) =2х
4) 12-3 (х+4) =9
5) (х+4) -4 (х+1) =1
Срочно, 15 балов даю!!
More Questions From This User See All
Answers & Comments
Verified answer
1) 7-2 (4-х) =-17-8+2x=-1
2x=0
x=0
2) 2- (х+1) =-2
2-x-1=-2
-x=-3
x=3
3) -3 (х+5)=2х
-3x-15=2x
5x=-15
x=-3
4) 12-3 (х+4) =9
12-3x-12=9
-3x=9
x=-3
5) (х+4) -4 (х+1) =1
x+4-4x-4=1
-3x=1
x=-1/3