решите систему уравнений способом сложения
1)х/3+У/2=6
Х/2-У/3=2,5
2) Х/6+У/4=6
Х/8-У/2=-1
More Questions From This User See All
решите систему уравнений способом сложения
1)х/3+У/2=6
Х/2-У/3=2,5
2) Х/6+У/4=6
Х/8-У/2=-1
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
1)х/3+У/2=6Х/2-У/3=2,5
2х/6 + 3у/6 = 36/6 2х + 3у = 36|*2 4x + 6y = 72
3х/6 - 2у/6 = 15/6 3х - 2у = 15*3 9x - 6y = 45
------------------- 13x =117 x = 117/13 = 9
y = (36 - 2x)/3 = (36 - 2*9)/3 = 18/3 = 6.
2) Х/6+У/4=6
Х/8-У/2=-1
2х/12 + 3у/12 = 72/12 2х + 3у = 72
2х/16 - 8у/16 = -16/16 -2х +8у = 16
--------------------
11у = 88 y = 88/11 = 8
x = (72 - 3y)/2 = (72 - 3*8)/2 = 48/2 = 24