1) 3 (х+4) +6х = 118
3x + 12 + 6x = 118
3x + 6x = 118 – 12
9x = 106
x = 106/9
х=11,7777777778
2) 0.18 (х-200) - 0.78х = 120
0.18x – 36 – 0.78x = 120
0,18x – 0,78x = 120 + 36
-0.6x = 156
x = -260
3) 7 (x-4) - 5 (6x-2) = -16x+10
7x – 28 – 30x + 10 = – 16x + 10
7x – 30x + 16x = 10 – 10 + 28
-7x = 28
x = -4
1) 3 (х+4) +6х = 118
3x + 12 + 6x = 118
3x + 6x = 118 – 12
9x = 106
x = 106/9
х=11,7777777778
2) 0.18 (х-200) - 0.78х = 120
0.18x – 36 – 0.78x = 120
0,18x – 0,78x = 120 + 36
-0.6x = 156
x = -260
3) 7 (x-4) - 5 (6x-2) = -16x+10
7x – 28 – 30x + 10 = – 16x + 10
7x – 30x + 16x = 10 – 10 + 28
-7x = 28
x = -4