What is expand 7(x-2-4x=10) ?

The solution to expand 7(x-2-4x=10) is -21x-14=10

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expand 7(x-2-4x=10)

expand

7 (x - 2 - 4 x = 10)

- 21 x - 14 = 10

Solution steps

7 (x - 2 - 4 x = 10)

= 7 (x - 2 - 4 \cdot 10 = x)

Distribute parentheses

= 7 x + 7 (- 2) + 7 (- 4 x = 10)

Apply minus-plus rules

+ (- a) = - a

7 x - 7 \cdot 2 - 7 \cdot 4 x = 10

Expand

7 x - 7 \cdot 2 - 7 \cdot 4 x : - 21 x - 14

- 21 x - 14 = 10

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