20 баллов за 3 задания! (Математика) 7-8 класс. Created by Lovata. algebra-ru

20 баллов за 3 задания! (Математика) 7-8 класс...

Lovata @Lovata

December 2021 1 15 Report

20 баллов за 3 задания! (Математика) 7-8 класс

Answers & Comments

DariosI

Verified answer

№1
-(с²+10с+25)-(с²-4с+3с-12)=-с²-10с-25-с²+с+12=-2с²-9с-13
№2
6b-13=-55
6b=-55+13
6b=-42
b=-7
№3
8x+4y-32=0
3x+4y-7=0

5x-32+7=0
2x+y-8=0

5x=25
2x+y-8=0

x=5
y=8-2*5

x=5
y=-2

x*y=-2*5=-10

3 votes Thanks 1

Lovata Спасибо

Fill in the right words: 1. For example, there is no evidence that a rise in tem...

Answer

Lovata July 2022 | 0 Ответы

nuzhna li zapyataya v dannom sluchae naleteli to na petyu to na vovu

Answer

Lovata July 2022 | 0 Ответы

izi 10b

Answer

Answers & Comments

Verified answer

sdelajte pozhalujsta 2 zadaniya 2h ballov otvety ne po teme udaleniepredupre

maks kol vo ballov dayu nuzhno napisat sochinenie na temu sovest minimum 70

vypolnite leksicheskij razbor dannyh slov nevezhej nevezhdoj professor

inyaz sdelajte 3 zaranee spasibo

25b urok chitatelskaya konferenciya i tak vam nuzhno opisat vashu lyubimuyu kn

pomogite s anglyazykom 3

pomogite reshit dam 20 bf44c83855c55ff9c75e3e9bdf0fb7d22 68472

Fill in the right words: 1. For example, there is no evidence that a rise in tem...

nuzhna li zapyataya v dannom sluchae naleteli to na petyu to na vovu

izi 10b

рекомендуемые вопросы

Helpful Links

Helpful Social