Exercise algebra.equations.linear.balance
Description
Solve a linear equation using only balance rules.
Derivation
-1/2*x+1[1/2] == 2*x-5
⇒ algebra.equations.linear.balance.remove-div, factor=2-x+3 == 4*x-10
⇒ algebra.equations.linear.balance.var-right-plus, term=x3 == 5*x-10
⇒ algebra.equations.linear.balance.con-left-plus, term=1013 == 5*x
⇒ algebra.equations.linear.balance.scale-to-one, factor=513/5 == x
⇒ algebra.equations.linear.flipx == 13/5