Calculate: 2x-5(1+x)-3(2x-2)-20

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  3. Calculate: 2x-5(1+x)-3(2x-2)-20

Expression: $2x-5(1+x)-3(2x-2)-20$

Expand $-5(1+x):{\quad}-5-5x$

$=2x-5-5x-3(2x-2)-20$

Expand $-3(2x-2):{\quad}-6x+6$

$=2x-5-5x-6x+6-20$

Group like terms

$=2x-5x-6x-5+6-20$

Add similar elements: $ 2x-5x-6x=-9x$

$=-9x-5+6-20$

Add the numbers: $ -5+6-20=-19$

$=-9x-19$

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