Solve for x:12a+b+2x=12a+1b+12x
Given: 12a+b+2x=12a+1b+12x
⇒12a+b+2x−12x=12a+1b
⇒2x−2a−b−2x(2a+b+2x)(2x)=2a+b2ab
⇒−(2a+b)4ax+2bx+4x2=2a+b2ab
⇒−14ax+2bx+4x2=12ab
⇒4ax+2bx+4x2=−2ab
⇒4ax+2bx+4x2+2ab=0
⇒4ax+4x2+2bx+2ab=0
⇒4x(a+x)+2b(x+a)=0
⇒(4x+2b)(a+x)=0
⇒x=−2b4 or x=−a
∴x=−b2,−a