What is (t-8)-(t+15) ?

The solution to (t-8)-(t+15) is -23

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simplify (t-8)-(t+15)

simplify

(t - 8) - (t + 15)

- 23

Solution steps

(t - 8) - (t + 15)

Apply rule:

(a) = a

(t - 8) = t - 8

= t - 8 - (t + 15)

Apply the distributive law:

- (a + b) = - a - b

- (t + 15) = - t - 15

= t - 8 - t - 15

Group like terms

= t - t - 8 - 15

Add similar elements:

t - t = 0

= - 8 - 15

Subtract the numbers:

- 8 - 15 = - 23

= - 23

(x + 4) (x - 9)

\frac{x}{x ^{2} + 7 x + 12} + \frac{4}{x ^{2} - 16}

\frac{2 x ^{2}}{x ^{3} + x ^{2}}

(x + 1) (x + 1)

2100