Question

3x-x+5x-6=8 1.9-0.34=3.16+1.2x 2(6-2x) +3(2x-3)=17 15X-2(4-3

Answer 1

3x-x+5x-6=8

7x=8+6

7x=14

x=2

1.9-0.34=3.16+1.2x

1.2x=1.9-0.34-3.16

1.2x=-1.6

x=- 4/3

2(6-2x) +3(2x-3)=17

12-4x+6x-6=17

6x-4x=17+6-12

2x=11

x=5.5

15X-2(4-3x)=3415

15x-8+6x=3415

15x+6x=8+3415

21x=3423

x=163

12.5 +3（2.6X+1.5)=9.6X+2.6

12.5+7.8x+4.5=9.6x+2.6

9.6x-7.8x=2.6-4.5-12.5

1.8x=-14.4

x=-8