1 2 (-1.4m + 0.4) = m + 0.2

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Mathematics

12 September, 02:40

1 2 (-1.4m + 0.4) = m + 0.2

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Maci Odom · Answer 1

First, you need to get rid of the parenthesis, so you need to distribute:

12 (-1.4m + 0.4) = m + 0.2

-16.8m + 4.8 = m + 0.2

Then subtract both sides by m:

-16.8m - m + 4.8 = m + 0.2 - m

-17.8m + 4.8 = 0.2

Subtract both sides by 4.8:

-17.8m + 4.8 - 4.8 = 0.2 - 4.8

-17.8m = - 4.6

Now, divide both sides by - 17.8:

-17.8m/-17.8 = - 4.6/-17.8

m ≈ 0.258