1) 1,5×+8=3,1×+162) 2×+(5-9×)=19 3) 3×-4×(3-2×)=6-7× - вопрос №17722577115831162259193343267 от serezhenkoui 19.11.2020 22:08

Question

Математика: 1) 1,5×+8=3,1×+162) 2×+(5-9×)=19 3) 3×-4×(3-2×)=6-7× ​

serezhenkoui · Answer

Пошаговое объяснение:1.1,5х - 3,1х = 16 - 8-1,6х = 8х = 8 : (-1,6)х = -52.2х + 5 - 9х = 192х - 9х = 19 - 5-7х = 14х = 14 : (-7)х = -23.3х - 12 + 8х = 6 - 7х3х + 8х + 7х = 6 + 1218х = 18х = 18 : 18х = 1...

1) 1,5×+8=3,1×+162) 2×+(5-9×)=19 3) 3×-4×(3-2×)=6-7× ​

1) 1,5×+8=3,1×+16
2) 2×+(5-9×)=19
3) 3×-4×(3-2×)=6-7×