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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

Popular Examples

x^{2} + 9 x + 8 < 0

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(3 x^{\frac{2}{3}})^{2}

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6 x^{2} + 11 x - 21

factor m^2-9m+20 factor

m^{2} - 9 m + 20

Frequently Asked Questions (FAQ)

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