Exercise algebra.equations.linear.balance

Description
Solve a linear equation using only balance rules.

Derivation

-9*x+8 == 14-8*x

⇒ algebra.equations.linear.balance.var-right-plus, term=9*x

8 == 14+x

⇒ algebra.equations.linear.balance.con-left-minus, term=14

-6 == x

⇒ algebra.equations.linear.flip

x == -6