Exercise algebra.equations.linear.balance

Description
Solve a linear equation using only balance rules.

Derivation

3*(x+4)-7 == -3*(x-2)

⇒ algebra.equations.linear.balance.distribute

3*x+5 == -3*x+6

⇒ algebra.equations.linear.balance.var-left-plus, term=3*x

6*x+5 == 6

⇒ algebra.equations.linear.balance.con-right-minus, term=5

6*x == 1

⇒ algebra.equations.linear.balance.scale-to-one, factor=6

x == 1/6