2(x-5)=9
2x — 10 = 9
2x = 9 +10
2x = 19 : 2
x = 19/2
-(x+8)=3
— x — 8 = 3
— x = 3 + 8
— x = 11
7-3(x+1)=6
7 — 3x + 3 = 6
— 3x = 6 — 7 — 3
— 3x = — 4 : (-3)
x = 4/3
2x-(7+x)=2
2x — 7 — x = 2
2x — x = 2 + 7
1 x = 9 : 1
x = 9
12+3(x-1)=0
12 + 3x — 3 = 0
3x = 0 — 12 + 3
3x = — 9 : 3
x = — 3
1-5(2-3x)=6
1 — 10 — 15x = 6
15x = 6 — 1 + 10
15x = 15 : 15
x = 1
5-2(3-x)=11
5 — 6 — 2x = 11
2x = 11 — 5 + 6
2x = 12 : 2
x = 6
-3-3(3-2x)=1
— 3 — 9 — 6x = 1
6x = 1 : 3 + 9
6x = 13 : 6
x = 13/6
Արփինե Խաչատրյանի բլոգ 