Exercise algebra.equations.linear.balance
Description
Solve a linear equation using only balance rules.
Derivation
2/5*x-1/4 == 1/2*x+3/4
⇒ algebra.equations.linear.balance.remove-div, factor=208*x-5 == 10*x+15
⇒ algebra.equations.linear.balance.var-right-minus, term=8*x-5 == 2*x+15
⇒ algebra.equations.linear.balance.con-left-minus, term=15-20 == 2*x
⇒ algebra.equations.linear.balance.scale-to-one, factor=2-10 == x
⇒ algebra.equations.linear.flipx == -10