How do you simplify $6b - (5a - 2 [a + (b - 2a)])$ ?

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Answer 1 · 2015-04-10T09:08:44

$color(red)(6b - (5a - 2 [a + (b - 2a)])$

Based on PEMDAS, we solve the innermost parentheses first, and then move outwards

$6b - (5a - 2 [a + b - 2a])$

$6b - (5a - 2 [b - a])$

$6b - (5a - 2b + 2a)$

$6b - (7a - 2b)$

$6b - 7a + 2b$

$8b - 7a$

$color(green)(- 7a + 8b$ is the Simplified Form of $color(red)(6b - (5a - 2 [a + (b - 2a)])$

How do you simplify 6b - (5a - 2 [a + (b - 2a)])6b - (5a - 2 [a + (b - 2a)])?