What is 2a+3(a+7)-(3a+3) ?

The solution to 2a+3(a+7)-(3a+3) is 2a+18

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simplify 2a+3(a+7)-(3a+3)

simplify

2 a + 3 (a + 7) - (3 a + 3)

2 a + 18

Solution steps

2 a + 3 (a + 7) - (3 a + 3)

Apply the distributive law:

- (a + b) = - a - b

- (3 a + 3) = - 3 a - 3

= 2 a + 3 (a + 7) - 3 a - 3

Expand

3 (a + 7) : 3 a + 21

= 2 a + 3 a + 21 - 3 a - 3

Group like terms

= 2 a + 3 a - 3 a + 21 - 3

Add similar elements:

2 a + 3 a - 3 a = 2 a

= 2 a + 21 - 3

Subtract the numbers:

21 - 3 = 18

= 2 a + 18

e^{2 l n (1 + x^{2})}

(8 x^{2} y - 3 y^{2}) (2 a x^{3})

- 8 y - 2 y - 4 + 4 y

9 (- 7)

\frac{- 8}{3 + 17}