Exercise algebra.equations.linear.balance

Description
Solve a linear equation using only balance rules.

Derivation

3*(4*x-1)+3 == 7*x-14
algebra.equations.linear.balance.distribute
12*x == 7*x-14
algebra.equations.linear.balance.var-left-minus, term=7*x
5*x == -14
algebra.equations.linear.balance.scale-to-one, factor=5
x == -14/5