# Wikijunior:More on Mathematics/Basic algebra

${\displaystyle {5*8 \over 10}=x+2}$
${\displaystyle 1+1=x+1}$ Now, if we want to find out x's value, we must equally subtract or add something to both sides. Let's subtract one from both sides, so now we have... ${\displaystyle {1+1-1=x+1-1}}$, which equals ${\displaystyle {1=x}}$.