Exercise algebra.equations.linear.balance
Description
Solve a linear equation using only balance rules.
Derivation
2/5*x-1 == 1/2*x
⇒ algebra.equations.linear.balance.remove-div, factor=104*x-10 == 5*x
⇒ algebra.equations.linear.balance.var-right-minus, term=4*x-10 == x
⇒ algebra.equations.linear.flipx == -10