How do you simplify  3(a + b - 1)?

Jun 30, 2018

$3 a + 3 b - 3$

Explanation:

$3 \left(a + b - 1\right)$

To simplify this, use the distributive property:

Following this image, we know that:
$\textcolor{b l u e}{3 \left(a + b - 1\right) = 3 a + 3 b - 3}$

Hope this helps!