Exercise algebra.equations.linear.balance
Description
Solve a linear equation using only balance rules.
Derivation
6-x == 10-6*x
⇒ algebra.equations.linear.balance.var-left-plus, term=6*x6+5*x == 10
⇒ algebra.equations.linear.balance.con-right-minus, term=65*x == 4
⇒ algebra.equations.linear.balance.scale-to-one, factor=5x == 4/5