Exercise algebra.equations.linear.balance
Description
Solve a linear equation using only balance rules.
Firsts
Rule algebra.equations.linear.balance.var-left-minus Location [] Term "Just (TCon relation1.eq [TCon arith1.times [TNum 7,TVar \"x\"],TNum 21])" Focus "Just (TCon relation1.eq [TCon arith1.times [TNum 7,TVar \"x\"],TNum 21])" Environment term=3*x