Exercise algebra.equations.linear.balance
Description
Solve a linear equation using only balance rules.
Derivation
15 == -2*x-5
⇒ algebra.equations.linear.balance.con-left-plus, term=520 == -2*x
⇒ algebra.equations.linear.balance.scale-to-one, factor=-2-10 == x
⇒ algebra.equations.linear.flipx == -10