Question

6•х=3•800

у:7=489-378

9•х=405:5

Прошу помогите ❤️

Answer 1

6*x=3*800;
6x=2400;
x=2400:6;
x=400.

y:7=489-378;
y:7=111;
y=111*7;
y=777.

9*x=405:5;
9x=81;
x=81:9;
x=9.