Exercise algebra.equations.linear.balance
Description
Solve a linear equation using only balance rules.
Derivation
4*x+5 == x-8
⇒ algebra.equations.linear.balance.var-left-minus, term=x3*x+5 == -8
⇒ algebra.equations.linear.balance.con-right-minus, term=53*x == -13
⇒ algebra.equations.linear.balance.scale-to-one, factor=3x == -13/3