Question

S = t + 2
2t + s = 17​

Answer 1

`s - t = 2 \\ 2t + s = 17 \\ \\ s - t - (2t + s) = 2 - 17 \\ s - t - 2t - s = - 15 \\ - 3t = - 15 \\ ( - 3t)/( - 3) = ( - 15)/( - 3) \\ t = 5 \\ \\ 2t + s = 17 \\ 2 * 5 + s = 17 \\ 10 + s = 17 \\ s = 17 - 10 \\ s =7 \\ \\ s - t = 2 \\ 7 - 5 = 2 \\ 2 = 2`