Amazon has a stockpile of 1850 algebra textbooks. They are being purchased at a steady rate of 120 books per week. How do you interpret the statement that b(14) =170

$450

step-by-step explanation:

first, you have to multiply 150x2=300

next, you have to add 150+300= 450

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18