Exercise algebra.equations.linear.balance
Description
Solve a linear equation using only balance rules.
Derivation
-3*x+1 == 3*x
⇒ algebra.equations.linear.balance.var-right-plus, term=3*x1 == 6*x
⇒ algebra.equations.linear.balance.scale-to-one, factor=61/6 == x
⇒ algebra.equations.linear.flipx == 1/6