Question

do not post short cuts,and few answers,all the questions should be written or else they will mark as reported​

Answer 1

Step-by-step explanation:

6)1.3x=3.9. 7)3x/4=6 8(I)x+5=16. (ii)y-9= -18+2y

x= 3.9/1.3. 3x= 6-4 x=16-5. y-2y = -18+9

=3 x=2/3. x= 11. -y= -9, y=9

9)2m-5=-17. 10)4(m+7)= 4 11(I)1.2x+2.6= 7.4.

2m= -17+5. 4m +28= 4. 1.2x = 7.4 - 2.6

2m= -12. 4m = 4-28. 1.2x = 4.8

m= --12/2 =6. m = -24/4 x= 4.8/1.2=4

= -6

11(ii)5m-4=2m+9. 12)3x +5 = 3. 13)2(3y-1) = 1

5m-2m= 9+4. 10-x. 4. . 7+5y. 3

3m = 13. 4(3x+5)=3(10-x). 3 ( 6y -2)=1(7+5y)

m= 13/3. 12x +20= 30-3x. 18y -6= 7 +5y

12x+3x =30-20. 18y -5y = 7+6

15x = 10. 13y = 13

x= 10/15= 2/3. y= 13/13 = 1

14)(4x-7)+(x+3) = -1

4x +7 + x+3 = -1

4x +x + 7+3 = -1

5x + 10= -1

5x = -1-10

5x = -11

x= -11/5