Question

решить уравнение 4,5*(10X+5,5)=90

Answer 1

45х+24,75=90; 45х=65,25; х=1,45

Answer 2

$4,5cdot(10x+5,5)=90;\ 45cdot0,1cdot(10x+5,5)=45cdot2;\ 0,1(10x+5,5)=2;\ x+0,55=2;\ x=2,00-0,55=1,45;\ x=1,45$

Answer 3

10x=20-5,5

Answer 4

10x=14,5

Answer 5

10*x=14,5

Answer 6

x=14,5/10

Answer 7

x=1,45