Question

ans these step by step and if you dont know please dont writ anything​

Answer 1

1.3x+ 12 + 5x +15 = 2x -27

8x + 27 = 2x -27

6x = - 54

x= -9

2. -65a +30 = 4

65a =26

a = 65 /26

3. 18x -54 + 9x +63 =( 300 +2)/3

27x +9 =302/3

27x = (302+ 27)/3

27x = 329/3

x = 329 /81

plz mark it as a brain list answer

Answer 2

Answer:

Step-by-step explanation:

i) 3(x+4)+5(x+3)=2x-27

multiply within brackets

  3x+12+5x+15=2x-27

   8x+27=2x-27

   8x-2x=-27-27

   6x=-54

   x=-9

ii) -65a+2(15)=-4

    -65a+30=-4

     -65a=-4-30

     -65a=-34

      a=-34/-65

      a=34/65

iii) 6(3x-9)+9x(1+7)=100+2/3

multiplying lhs and taking LCM on rhs

    18x-54+9x(8)=300+2/3

     18x-54+72x=300+2/3

      90x-54=300+2/3

      cross multiplying 3 on lhs

      270x-162=302

     270x=462

     x=462/270

     x=1.71