Answer
$-8x+2.8$
Work Step by Step
1. Expand the algebraic expression:
$4(x+0.7)-9(x+0.2)-3(x-0.6)$
=$4x+2.8-9x-1.8-3x+1.8$
2. Rewrite the expression:
$4x+2.8-9x-1.8-3x+1.8$
$=4x-9x-3x+2.8-1.8+1.8$
3. Use the distributive property to simplify the algebraic expression and then add/subtract:
$4x-9x-3x+2.8-1.8+1.8$
$=x(4-9-3)+2.8-1.8+1.8$
$=x(-8)+2.8$
$=-8x+2.8$