Kaya used these steps to solve the equation 7+2x=2(x−1)+4. Which choice describes the meaning of her result, 7=2? A: No values of x make the equation true
B: The solution is x = 7 or 2
C: All values of x make the equation true
D: Kaya made a mistake because 7 is not equal to 2

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

about 168 miles

step-by-step explanation: