Exercise algebra.equations.linear.balance
Description
Solve a linear equation using only balance rules.
Derivation
2*x == 1/2*x-13/2
⇒ algebra.equations.linear.balance.remove-div, factor=24*x == x-13
⇒ algebra.equations.linear.balance.var-left-minus, term=x3*x == -13
⇒ algebra.equations.linear.balance.scale-to-one, factor=3x == -13/3