Exercise algebra.equations.linear.balance

Description
Solve a linear equation using only balance rules.

Derivation

2/3*x-3/4 == 3/4*x-1/3

⇒ algebra.equations.linear.balance.remove-div, factor=12

8*x-9 == 9*x-4

⇒ algebra.equations.linear.balance.var-right-minus, term=8*x

-9 == x-4

⇒ algebra.equations.linear.balance.con-left-plus, term=4

-5 == x

⇒ algebra.equations.linear.flip

x == -5