Exercise algebra.equations.linear.balance
Description
Solve a linear equation using only balance rules.
Derivation
-11 == -4*x-13
⇒ algebra.equations.linear.balance.con-left-plus, term=132 == -4*x
⇒ algebra.equations.linear.balance.scale-to-one, factor=-4-1/2 == x
⇒ algebra.equations.linear.flipx == -1/2