How can i solve if 3t-7=5t, then 6t=

The train station clock runs too fast and gains 5 minutes every 10 days. how many minutes and seconds will it have gained at the end of 9 days?

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)