Exercise algebra.equations.linear.balance
Description
Solve a linear equation using only balance rules.
Derivation
![](http://ideas.cs.uu.nl/images/external.png)
-1/4*x+1 == 1/2+5/2*x
⇒ algebra.equations.linear.balance.remove-div, factor=4-x+4 == 2+10*x
⇒ algebra.equations.linear.balance.var-right-plus, term=x4 == 2+11*x
⇒ algebra.equations.linear.balance.con-left-minus, term=22 == 11*x
⇒ algebra.equations.linear.balance.scale-to-one, factor=112/11 == x
⇒ algebra.equations.linear.flipx == 2/11