Exercise algebra.equations.linear.balance
Description
Solve a linear equation using only balance rules.
Derivation
(-1[2/5])*x+3[1/2] == 3/5*x+9/10
⇒ algebra.equations.linear.balance.remove-div, factor=10-14*x+35 == 6*x+9
⇒ algebra.equations.linear.balance.var-right-plus, term=14*x35 == 20*x+9
⇒ algebra.equations.linear.balance.con-left-minus, term=926 == 20*x
⇒ algebra.equations.linear.balance.scale-to-one, factor=2013/10 == x
⇒ algebra.equations.linear.flipx == 13/10