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Popular >

simplify (a-b)-(a+b)

Solution

simplify

(a - b) - (a + b)

Solution

- 2 b

Solution steps

(a - b) - (a + b)

Apply rule:

(a) = a

(a - b) = a - b

= a - b - (a + b)

Apply the distributive law:

- (a + b) = - a - b

- (a + b) = - a - b

= a - b - a - b

Group like terms

= a - a - b - b

Add similar elements:

a - a = 0

= - b - b

Add similar elements:

- b - b = - 2 b

= - 2 b

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Frequently Asked Questions (FAQ)

What is (a-b)-(a+b) ?
The solution to (a-b)-(a+b) is -2b