Sederhanakanlah setiap bentuk aljabar berikut.
a. $18y+5(7+3y)$
b. $30(b+2)+2b$
c. $x+5x+8(x+2)$
Jawab
$18y+5(7+3y)=18y+35+15y$
$18y+5(7+3y)=18y+15y+35$
$18y+5(7+3y)=33y+35$
$30(b+2)+2b=30b+60+2b$
$30(b+2)+2b=30b+2b+60$
$30(b+2)+2b=32b+60$
$x+5x+8(x+2)=x+5+8x+16$
$x+5x+8(x+2)=x+8x+5+16$
$x+5x+8(x+2)=9x+21$
Muda Berkarya Intelektual Normatif
