One day, Timmy works 4 hours and makes an additional $50 in tips. Another day, he works 6 hours and gets an additional $70 in tips. This makes his total earnings 4h + 50 + 6h + 70 = M, where M is the money he earns and h is the wage he makes per hour. If he makes $205, how much did he make as a salary per hour?
