What is the answer to -d=-0.9d+0.3 ?

The answer to -d=-0.9d+0.3 is d=-3

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-d=-0.9d+0.3

- d = - 0.9 d + 0.3

d = - 3

Solution steps

- d = - 0.9 d + 0.3

Multiply both sides by

10

- d \cdot 10 = - 9 d + 3

Move

9 d

to the left side

- d = 3

Divide both sides by

- 1

d = - 3

x + 17 + x + 21 = 20

a, b = 9 + \frac{1}{3} q a

x, 4 x + 7 y + 5 x y = 0

\frac{x}{- 9} = - 7

- 8 (x + 13) = 2 (x - 7) + 4 x