Exercise algebra.equations.linear.balance
Description
Solve a linear equation using only balance rules.
Derivation
x-6 == 10*x
⇒ algebra.equations.linear.balance.var-right-minus, term=x-6 == 9*x
⇒ algebra.equations.linear.balance.scale-to-one, factor=9-2/3 == x
⇒ algebra.equations.linear.flipx == -2/3