13(10b+10)+5(b+2) solve

asked Jun 26, 2015 153k views

1 vote

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3 votes

$13(10b+10)+5(b+2)\\=13(10b)+13(10)+5(b)+5(2)\\=130b+130+5b+10\\=(130b+5b)+(130+10)\\=\boxed{135b+140}$

Demiurg answered Jun 26, 2015

7.3k points

7 votes

$13(10b+10)+5(b+2) \\=130b+130+5b+10 \\=135b+140$

Franswa answered Jun 30, 2015

7.4k points

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