Exercise algebra.equations.linear.balance

Description
Solve a linear equation using only balance rules.

Derivation

-x+2 == 10*x

⇒ algebra.equations.linear.balance.var-right-plus, term=x

2 == 11*x

⇒ algebra.equations.linear.balance.scale-to-one, factor=11

2/11 == x

⇒ algebra.equations.linear.flip

x == 2/11