What is simplify-0.1(k+0.7)-0.9(0.5k-8) ?

The solution to simplify-0.1(k+0.7)-0.9(0.5k-8) is -0.55k+7.13

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simplify-0.1(k+0.7)-0.9(0.5k-8)

simplify

- 0.1 (k + 0.7) - 0.9 (0.5 k - 8)

- 0.55 k + 7.13

Solution steps

- 0.1 (k + 0.7) - 0.9 (0.5 k - 8)

Expand

- 0.1 (k + 0.7) : - 0.1 k - 0.07

= - 0.1 k - 0.07 - 0.9 (0.5 k - 8)

Expand

- 0.9 (0.5 k - 8) : - 0.45 k + 7.2

= - 0.1 k - 0.07 - 0.45 k + 7.2

Group like terms

= - 0.1 k - 0.45 k - 0.07 + 7.2

Add similar elements:

- 0.1 k - 0.45 k = - 0.55 k

= - 0.55 k - 0.07 + 7.2

Add the numbers:

- 0.07 + 7.2 = 7.13

= - 0.55 k + 7.13

- 3 i (7 i - 5)

∣ - 0.2 i ∣

- 1 6^{\frac{5}{4}}

\frac{4}{16} - \frac{6}{2}

(3 x^{2} - 7) - (10 x^{2} - 1)

What is simplify-0.1(k+0.7)-0.9(0.5k-8) ?
The solution to simplify-0.1(k+0.7)-0.9(0.5k-8) is -0.55k+7.13