Question

СРОЧНО ДАЮ 20 БАЛОВ!!!!!

Answer 1

Пошаговое объяснение:

1.8x=6.3*7

1.8x=44.1

x=44.1/1.8

x=24.5

0.4x=6*2/25

0.4x=12/25

0.4x=0.48

x=0.48/0.4

x=1.2

0.3x=4*4.2

0.3x=16.8

x=16.8/0.3

x=56

2/5x=2*2.4

0.4x=4.8

x=4.8/0.4

x=12