Simplify 2(5a+2b)-a

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

Step 1

Simplify each term.

Apply the distributive property.

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

Multiply $5$ by $2$ .

$10 a + 2 (2 b) - a$

Multiply $2$ by $2$ .

$10 a + 4 b - a$

$10 a + 4 b - a$

Step 2

Subtract $a$ from $10 a$ .

$9 a + 4 b$

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