Exercise algebra.equations.linear.balance
Description
Solve a linear equation using only balance rules.
Derivation
-3*(x-2) == 3*(x+4)-7
⇒ algebra.equations.linear.balance.distribute-3*x+6 == 3*x+5
⇒ algebra.equations.linear.balance.var-right-plus, term=3*x6 == 6*x+5
⇒ algebra.equations.linear.balance.con-left-minus, term=51 == 6*x
⇒ algebra.equations.linear.balance.scale-to-one, factor=61/6 == x
⇒ algebra.equations.linear.flipx == 1/6