Question

10.x + 3.(2.x +4 ) = x + 42 

6.x + 2.(2.x - 3) = x + 30

Answer 1

10x+6x+12=x+42

16x-x=-12+42

15x=30

x=2

2,=6x+4x-6=x+30

9x=6+30

9x=36

x=4

Answer 2

10.x + 3( 2.x + 4 ) = x + 42

10x + 6x + 12 = x + 42

16x -x = -12 + 42

15x = 30

=> x = 2

6.x + 2.( 2.x - 3 ) = x + 30

6x + 4x - 6 = x + 30

9x = 6 + 30

9x = 36

=> x = 4