Question

Rezolvati urmatorele ecuatii:
5(3x-2)-6(8x-13)-13x=16(8-3x)-62
2(3x+4)-5(2x-3)+7=7(x-1)+4
2(3x-4)+5(6x-7)-7x=16(x+15)-10
3(6x-5)-2(4x+13)+5=5(-x+4)-26

Answer 1

15x - 10 - 48x + 78 - 13x = 128 - 48x - 62
2x = - 68 + 66
2x = - 2       x = - 1
6x + 8 - 10x + 15 + 7 = 7x - 7 + 4
- 4x - 7x = - 30 - 3
-11x = - 33          x =  3
6x - 8 + 30x - 35 - 7x = 16x + 240 - 10
29x - 16x = 43 + 230
13x = 273          x = 21
18x - 15 - 8x - 26 + 5 = - 5x + 20 - 26
10x + 5x = 36 - 6
15x = 30           x = 2

Answer 2

15x-10-48x+78-13x = 128-48x-62
2x =128-62-78+10
2x= -2
x= -1

6x+8-10x+15+7=7x-7+4
6x-10x-7x= -7+4-8-15-7
-11x = -33
x = 3

6x-8+30x-35-7x=16x+240-10
6x+30x-7x-16x=240-10+8+35
13x=273
x = 21

18x-15-8x-26+5= -5x+20-26
18x-8x+5x=20-26+15+26-5
15x=30
x = 2