Exercise algebra.equations.linear.balance

Description
Solve a linear equation using only balance rules.

Derivation

3*x+10-35*x == -70

⇒ algebra.equations.linear.balance.collect

-32*x+10 == -70

⇒ algebra.equations.linear.balance.con-right-minus, term=10

-32*x == -80

⇒ algebra.equations.linear.balance.scale-to-one, factor=-32

x == 5/2