Exercise algebra.equations.linear.balance

Description
Solve a linear equation using only balance rules.

Derivation

1/4*x == 5/2*x+3/2

⇒ algebra.equations.linear.balance.remove-div, factor=4

x == 10*x+6

⇒ algebra.equations.linear.balance.var-left-minus, term=10*x

-9*x == 6

⇒ algebra.equations.linear.balance.scale-to-one, factor=-9

x == -2/3