Inclusive of a 6.8% sales tax, a diamond ring sold for $2029.20. Find the price of the ring before before the tax was added. Round to the nearest cent if necessary

The answer is $1900

Step-by-step explanation:

(1+0.068)x = 2029.20

1.068x = 2029.20

Divide 2029.20 by 1.068

X = $1900

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

answer: idk

step-by-step explanation: