7,429x+9,571x=4,25;
x=?

28x-x=0,729;28x−x=0,729;
x=?

1,5x-0,78x=1,8;1,5x−0,78x=1,8;
x=?

3,6y+2,8y=22,4;3,6y+2,8y=22,4;
x=?

Question

Математика: 7,429x+9,571x=4,25; x=? 28x-x=0,729;28x−x=0,729; x=? 1,5x-0,78x=1,8;1,5x−0,78x=1,8; x=? 3,6y+2,8y=22,4;3,6y+2,8y=22,4; x=?

pportop · Answer

1)7,429Х + 9,571Х = 4,2517Х = 4,25Х = 0,252)28X - X = 0,729 27X = 0,729X = 0,0273) 1,5X - 0,78X = 1,80,72X = 1,8X = 2,5...