Alex wants to go bungee jumping. Joe has a mass of 99kg. When he jumped off the cliff he was at a height of 47m. The bungee at full extension reached 40m. The bungee cord had a spring constant of 50N/m. How much elastic force did the bungee cord have? *

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?