What is the answer to 0.1(-2)-0.2y=0.4 ?

The answer to 0.1(-2)-0.2y=0.4 is y=-3

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0.1(-2)-0.2y=0.4

0.1 (- 2) - 0.2 y = 0.4

y = - 3

Solution steps

0.1 (- 2) - 0.2 y = 0.4

Remove parentheses:

(- a) = - a

- 0.1 \cdot 2 - 0.2 y = 0.4

Multiply the numbers:

0.1 \cdot 2 = 0.2

- 0.2 - 0.2 y = 0.4

Multiply both sides by

10

- 2 - 2 y = 4

Move

2

to the right side

- 2 y = 6

Divide both sides by

- 2

y = - 3

11 = - \frac{3}{10} a + 2

8 x - 4 = 2 (4 x - 4)

- 4 x + 2 (x + 4) = - 7 x - (x + 1)

5 m - 4 = m + 4 + m + 4

x + 5 = 10 + 3