## Elementary Algebra

$4.6x-8$
1. Expand the algebraic expression: $5(x-0.5)+0.3(x-2)-0.7(x+7)$ =$5x-2.5+0.3x-0.6-0.7x-4.9$ 2. Rewrite the expression: $5x-2.5+0.3x-0.6-0.7x-4.9$ $=5x+0.3x-0.7x-2.5-0.6-4.9$ 3. Use the distributive property to simplify the algebraic expression and then add/subtract: $5x+0.3x-0.7x-2.5-0.6-4.9$ $=x(5+0.3-0.7)-2.5-0.6-4.9$ $=x(4.6)-8.0$ $=4.6x-8$