1.) 6s+(3s-2)=14

2.) 8y-(7y-142)=51

3.) (6x+1)-(3-2x)=14

4.) (6-2c)+4=-5c-3

5.) (10x-3)+(14x-4)=8-(15-22x)

6.) (7-10k)-(8-8k)+(10k+6)=-8

2

Ответы и объяснения

2013-05-24T10:24:42+04:00
1) 6s+3s-2=14
9s=12
s=4/3
2)8y-7y+142=51
y=-91
3)6x+1-3+2x=14
8x=14+3-1
8x=16
x=2
2013-05-24T12:00:57+04:00
1) 6s+3s-2-14=0
9s=16
S=16/9
2) 8y-7y+142-51=0
y=91
3) 6x+1-3+2x-14=0
8x=16
x=2
4) 6-2c+4+5c+3=0
3c=13
c=13/3
5) 10x-3+14x-4-8+15-22x=0
-37x=0
x=0
6) 7-10k-8+8k+10k+6+8=0
8k=-13
k=-13/8