8d-3d =65 plus work
So you basically have, (27D-9)+3D = 29+(27D+1) 30D-9 = 27D+30 3D = 39 D = 13
c = 6 and d = 7
D + 3D = 240 4D = 240 Divide both sides of the equation by 4: D = 60
3d-3d cancel 2d-3d=-1d 8=-1d-17 -17+17 cancel 8+17=25 25=-1d 25/-1=-1d/-1 d=-25
8d-3d =65 plus work
3d + 14 = 11 is the equation.
No. 1a and 3d are linear, but 2bc is not. ■
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
3d + 8 = 2d - 7 3d -2d = -8 - 7 1d = - 15 d = -15
D + 3D = 240 4D = 240 Divide both sides of the equation by 4: D = 60
3d-3d cancel 2d-3d=-1d 8=-1d-17 -17+17 cancel 8+17=25 25=-1d 25/-1=-1d/-1 d=-25
1. 7d-13=3d+72. 7d-20=3d3. -20=-4d4. d=55. Check your answer:7*5-13=22, 3*5+7=22D equals 5
8d = 5d+18 8d-5d = 18 3d = 18 d = 6
3d+8=2d-7 3d+8-8=2d-7-8 (substract 8 on both side) 3d=2d-15 3d-2d=2d-2d-15 (substract 2d on both side) d=-15