Question

решите уравнения х*36=240+480 72/х=680-644

Answer 1

x*36=720
x=720:36
x=20

72:x=36
x=72:36
x=2

Answer 2

x•36=240+480
x•36=720
x=720:36
x=20
72:x=680-644
72:x=36
x=72:36
x=2