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2014-11-02T20:10:06+02:00
A) x-3+x-2=17 |+3
2x-2=20 | +2
2x=22 |:2
x=11
b) x-10+x-24+x+4=15 |-4
3x-10-24=11 |+10
3x-24=21 | +24
3x= 45 | :3
x=15
2014-11-02T20:12:30+02:00
2x-5=17
2x=17+5
x=22/2
x=11
b)3x-10-24+4=15
3x-30=15
3x=15+30
x=45/3
x=15