Exercise algebra.equations.linear.balance
Description
Solve a linear equation using only balance rules.
Derivation
![](http://ideas.cs.uu.nl/images/external.png)
4-16*x == 21*x+3
⇒ algebra.equations.linear.balance.var-right-plus, term=16*x4 == 37*x+3
⇒ algebra.equations.linear.balance.con-left-minus, term=31 == 37*x
⇒ algebra.equations.linear.balance.scale-to-one, factor=371/37 == x
⇒ algebra.equations.linear.flipx == 1/37