Exercise algebra.equations.linear.balance
Description
Solve a linear equation using only balance rules.
Derivation
3*x-12 == -5*x+35
⇒ algebra.equations.linear.balance.var-left-plus, term=5*x8*x-12 == 35
⇒ algebra.equations.linear.balance.con-right-plus, term=128*x == 47
⇒ algebra.equations.linear.balance.scale-to-one, factor=8x == 47/8