Question

7,9+7x=5x-59,  
4,7*(-4y-3)-3,5*(6-2y)=0,3
уравнения

Answer 1

$7.9+7x=5x-59 7x-5x=-59-7.9 2x=-66.9 X=-66.9/2 X=-33.45 4/7*(-4y-3)-3.5*(6-2y)=0.3 -18.8y-14.1-21+7y=0.3 -18.8y+7y=0.3+21+14.1 -11.8y=35.4 Y=-3$