What is simplify-3(x-y-z)-4y+7x+7(2x-y) ?

The solution to simplify-3(x-y-z)-4y+7x+7(2x-y) is 18x-8y+3z

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simplify-3(x-y-z)-4y+7x+7(2x-y)

simplify

- 3 (x - y - z) - 4 y + 7 x + 7 (2 x - y)

18 x - 8 y + 3 z

Solution steps

- 3 (x - y - z) - 4 y + 7 x + 7 (2 x - y)

Expand

- 3 (x - y - z) : - 3 x + 3 y + 3 z

= - 3 x + 3 y + 3 z - 4 y + 7 x + 7 (2 x - y)

Expand

7 (2 x - y) : 14 x - 7 y

= - 3 x + 3 y + 3 z - 4 y + 7 x + 14 x - 7 y

Group like terms

= - 3 x + 7 x + 14 x + 3 y - 4 y - 7 y + 3 z

Add similar elements:

- 3 x + 7 x + 14 x = 18 x

= 18 x + 3 y - 4 y - 7 y + 3 z

Add similar elements:

3 y - 4 y - 7 y = - 8 y

= 18 x - 8 y + 3 z

10 p + 2 p + 3 p

4 y + 6 z

cos^{2} (o) (1 + tan^{2} (o))

- 3 a + 12 b

(6 a^{3} - 8 6^{4})^{3}

What is simplify-3(x-y-z)-4y+7x+7(2x-y) ?
The solution to simplify-3(x-y-z)-4y+7x+7(2x-y) is 18x-8y+3z