What is 0.8(-5u+0.9)+0.2(0.5u-5) ?

The solution to 0.8(-5u+0.9)+0.2(0.5u-5) is -3.9u-0.28

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simplify 0.8(-5u+0.9)+0.2(0.5u-5)

simplify

0.8 (- 5 u + 0.9) + 0.2 (0.5 u - 5)

- 3.9 u - 0.28

Solution steps

0.8 (- 5 u + 0.9) + 0.2 (0.5 u - 5)

Expand

0.8 (- 5 u + 0.9) : - 4 u + 0.72

= - 4 u + 0.72 + 0.2 (0.5 u - 5)

Expand

0.2 (0.5 u - 5) : 0.1 u - 1

= - 4 u + 0.72 + 0.1 u - 1

Group like terms

= - 4 u + 0.1 u + 0.72 - 1

Add similar elements:

- 4 u + 0.1 u = - 3.9 u

= - 3.9 u + 0.72 - 1

Subtract the numbers:

0.72 - 1 = - 0.28

= - 3.9 u - 0.28

- 18 (- 3 - 5)

\frac{9 x}{3 x y}

(8 x - 3 y) - (9 x + 8 y)

a^{4} + a b^{3}

1 - \frac{a + x}{a - x}

What is 0.8(-5u+0.9)+0.2(0.5u-5) ?
The solution to 0.8(-5u+0.9)+0.2(0.5u-5) is -3.9u-0.28