How do you simplify $- 5 a + 10 a + 3 b + 7 a - 3 b$ $-5a+10a+3b+7a-3b$ ?

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Answer 1 · 2015-09-07T12:33:05

$= 12 a$ $=color(blue)(12a$

$- 5 a + 10 a + 3 b + 7 a - 3 b$ $−5a+10a+3b+7a−3b$

Grouping like terms
$= - 5 a + 10 a + 3 b + 7 a - 3 b$ $=color(blue)(−5a+10a)+color(green)(3b)+color(blue)(7a)−color(green)(3b$

$= 5 a + 7 a + 3 b - 3 b$ $=color(blue)(5a+7a +color(green)(3b-3b$
$= 12 a$ $=color(blue)(12a$

How do you simplify −5a+10a+3b+7a−3b-5a+10a+3b+7a-3b?