Question

Solve the equation for d. 0.2(d-6)=0.3d+5-3+0.1d

Answer 1

d = -16

Explanation:

`0.2(d-6)=0.3d+5-3+0.1d\\\rule{150}{0.5}\\0.2d - 1.2 = 0.3d+5-3+0.1d\\\\0.2d - 1.2 = 0.3d+0.1d+ 5-3\\\\0.2d - 1.2=0.4d + 2\\\\0.2d- 0.2d - 1.2 = 0.4d -0.2d + 2\\\\-1.2 = 0.2d + 2\\\\-1.2 -2 = 0.2d + 2 - 2\\\\-3.2 = 0.2d\\\\(-3.2 = 0.2d)/(0.2)\\\\-16 = d\\\\\boxed{d = -16}`

Answer 2

Explanation:

0.2(d - 6) = 0.3d + 5 - 3 + 0.1d

0.2d - 1.2 = 0.4d + 2

- 0.2d = 3.2

d = - 16