Exercise algebra.equations.linear.balance

Description
Solve a linear equation using only balance rules.

Derivation

3*(4*x-1)+3-7*x == -14

⇒ algebra.equations.linear.balance.distribute

12*x-7*x == -14

⇒ algebra.equations.linear.balance.collect

5*x == -14

⇒ algebra.equations.linear.balance.scale-to-one, factor=5

x == -14/5