Need help asap! 10 points

Find the value of x. round the length to the nearest tenth

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?

The legs of a right triangle measure 6 meters and 8 meters. what is the length of the hypotonuse.