Реши уравнения 65+(x+23)=105 (48-x)+35=82 90+y*8=154 120: (x-19)=6

65+(x+23)=105
x+23=105-65
x+23=40
x=40-23
x=17

(48-x)+35=82
48-x=82-35
48-x=47
x=48-47
x=1

90+y*8=154
y*8=154-90
y*8=64
y=64÷8
y=8

120:(x-19)=6
x-19=120:6
x-19=20
x=20+19
x=39