Simplify a(6-1)+3b-b(2-1)+10

$a (6 - 1) + 3 b - b (2 - 1) + 10$

Simplify each term.

Subtract $1$ from $6$ .

$a \cdot 5 + 3 b - b (2 - 1) + 10$

Move $5$ to the left of $a$ .

$5 \cdot a + 3 b - b (2 - 1) + 10$

Subtract $1$ from $2$ .

$5 a + 3 b - b \cdot 1 + 10$

Multiply $- 1$ by $1$ .

$5 a + 3 b - b + 10$

$5 a + 3 b - b + 10$

Subtract $b$ from $3 b$ .

$5 a + 2 b + 10$

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