Exercise algebra.equations.linear.balance

Description
Solve a linear equation using only balance rules.

Derivation

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

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

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

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

x-4 == -9

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

x == -5