Решить уравнения:3х-15=х+37-3х=х+112(х+3)=х+134(5-х)=3х-13(х-2)=х+4
5(х-1)=4х+3
- 1) 3х-15=х+33х — х = 3 + 152х = 18х = 6
2)
7-3х=х+11— 3х — х = 11 — 7— 4х = 4х = — 1
3)
2(х+3)=х+132х + 6 = х + 132х — х = 13 — 6х = 7
4)
4(5-х)=3х-120 — 4х = 3х — 1— 4х — 3х = -1 — 20— 7х = — 21х = 3
5)
3(х-2)=х+43х — 6 = х + 43х — х = 4 + 62х = 10х = 5
6)
5(х-1)=4х+35х — 5 = 4х + 35х — 4х = 3 + 5
х = 8