Exercise algebra.equations.linear.balance
Description
Solve a linear equation using only balance rules.
Derivation
35 == 20*x+9
⇒ algebra.equations.linear.balance.con-left-minus, term=926 == 20*x
⇒ algebra.equations.linear.balance.scale-to-one, factor=2013/10 == x
⇒ algebra.equations.linear.flipx == 13/10