The solution is n = –2 verified as a solution to the equation 1.4n + 2 = 2n + 3.2. What is the last line of the justification?

1 answer:

4 0

Solve:
1.4n + 2 = 2n + 3.2

Group like terms and change its corresponding signs.
1.4n - 2n = 3.2 - 2

Simplify each term:
-0.6n = 1.2

Find n by dividing each side with -0.6
-0.6n/-0.6 = 1.2 / -0.6
n = -2

The last line of the justification is the division -0.6n and 1.2 by -0.6.

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