They can be simplified to 10d
1.6-d=12.8+3d 12.8-1.6=-d-3d 11.2=-4d 11.2/-4=d d=-2.8
D + 3D = 240 4D = 240 Divide both sides of the equation by 4: D = 60
3d + 8d - d - 5 = 10d - 5 = 5*(2d - 1)
That depends on the value of d.
it would be 1 fourth multiplied by quanity d squared plus 3d plus 9 (1/4)(d2 + 3d + 4)
They can be simplified to 10d
1.6-d=12.8+3d 12.8-1.6=-d-3d 11.2=-4d 11.2/-4=d d=-2.8
They are: 6d+6 or 6(d+1)
9m-2d
D + 3D = 240 4D = 240 Divide both sides of the equation by 4: D = 60
3d + 8d - d - 5 = 10d - 5 = 5*(2d - 1)
That depends on the value of d.
5d + 2(3d) 5d + 6d 11d
So you basically have, (27D-9)+3D = 29+(27D+1) 30D-9 = 27D+30 3D = 39 D = 13
5d+3d = 15 8d = 15 d = 15/8 = 1.875
c = 6 and d = 7