Exercise algebra.equations.linear.balance

Description
Solve a linear equation using only balance rules.

Derivation

36 == 63-8*x

⇒ algebra.equations.linear.balance.con-left-minus, term=63

-27 == -8*x

⇒ algebra.equations.linear.balance.scale-to-one, factor=-8

27/8 == x

⇒ algebra.equations.linear.flip

x == 27/8