What is (-2x+4)-(-x-5) ?

The solution to (-2x+4)-(-x-5) is -x+9

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simplify (-2x+4)-(-x-5)

simplify

(- 2 x + 4) - (- x - 5)

- x + 9

Solution steps

(- 2 x + 4) - (- x - 5)

Apply rule:

(a) = a

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

= - 2 x + 4 - (- x - 5)

Apply the distributive law:

- (- a - b) = a + b

- (- x - 5) = x + 5

= - 2 x + 4 + x + 5

Group like terms

= - 2 x + x + 4 + 5

Add similar elements:

- 2 x + x = - x

= - x + 4 + 5

Add the numbers:

4 + 5 = 9

= - x + 9

2 \times 32

x^{9} + 8 x^{3}

\frac{5 x}{10}

lo g_{2} (0.9)

x + \frac{25}{x}