Find the value of x:0.5x+x3=0.25x+7
Given: 0.5x+x3=0.25x+7
⇒0.5x+x3−0.25x=7
⇒x3+0.25x=7
⇒x+0.75x3=7
⇒1.75x3=7
⇒x=7×31.75
∴x=12