A) 3x+6+2x=61. 5X+6=61. 5x%=61-6. 5X=55. x=11. B) 6x-12+x=27. 7x-12=27. 7x=27+12 7x=39 x=39supra7. C)3+2 x-2=17. 1+2x=17. 2x=17-1. 2x=16. x=8 D) 5X=20. x=4. E). 7+8x=63. 8x=63-7. 8x=56. x=7. F) x+5=9. x=9-5. x=4. G). (5+2)x(x+3)=56. 7(x+3)=56. x+3=8. x=8-3 x=5.