Exercise algebra.equations.linear.balance
Description
Solve a linear equation using only balance rules.
Derivation
5*x+15 == x+3
⇒ algebra.equations.linear.balance.var-left-minus, term=x4*x+15 == 3
⇒ algebra.equations.linear.balance.con-right-minus, term=154*x == -12
⇒ algebra.equations.linear.balance.scale-to-one, factor=4x == -3