Exercise algebra.equations.linear.balance

Description
Solve a linear equation using only balance rules.

Derivation

4 == 37*x+3

⇒ algebra.equations.linear.balance.con-left-minus, term=3

1 == 37*x

⇒ algebra.equations.linear.balance.scale-to-one, factor=37

1/37 == x

⇒ algebra.equations.linear.flip

x == 1/37