What is 1+3(r-8)-4(r+4) ?

The solution to 1+3(r-8)-4(r+4) is -r-39

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simplify 1+3(r-8)-4(r+4)

simplify

1 + 3 (r - 8) - 4 (r + 4)

- r - 39

Solution steps

1 + 3 (r - 8) - 4 (r + 4)

Expand

3 (r - 8) : 3 r - 24

= 1 + 3 r - 24 - 4 (r + 4)

Expand

- 4 (r + 4) : - 4 r - 16

= 1 + 3 r - 24 - 4 r - 16

Group like terms

= 3 r - 4 r + 1 - 24 - 16

Add similar elements:

3 r - 4 r = - r

= - r + 1 - 24 - 16

Subtract the numbers:

1 - 24 - 16 = - 39

= - r - 39

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