5x - 2z = 8 -2y + 9z = 50 6x + 9y + 9z = 96

Nell has a sales clerk job that pays $12 per hour for regular gas work hours. she gets double time for any hours over 40 that she works in a week. how many hours did nell work if her weekly pay was $744

Can some one explain how to slove specifically, what is the value of x? 0.9(x+1.4)-2.3+0.1x=1.6 enter the answer as a decimal in the box. x= ?

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2