Tran drove his car at a constant speed of 55 mph. which is an equation for the distance tran drove? a. 55d=t b. d=55t c. t/d=55 d. 55/d=t plz i think the answer is d am not sure.

The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (–4x + 10) = 9 –x + 10 = 9 –x = –1 x = 1 what is the value of y?