5Х-32=17х4 5Х=68+32 Х=100:5 Х=20 56/(14-y)=100-92 56/(14-y)=8 56=8(14-У) 56=112-8У У=(112-56)/8 У=7
А)(5x-32)/4=17 5x-32 = 17 * 4 5х - 32 = 68 5х = 68 + 32 5х = 100 х = 100 : 5 х = 20 Б)92+56/(14-y)=100 56/(14-y) = 100 - 92 56/(14-y) = 8 14-y = 56/8 14 - у = 7 -у = 7 - 14 -у = -7 у = 7
пожалуйста :)