Mathematics
Junior High
Solved
連立方程式の問題なんですけどわからないので教えて欲しいです
連立方程式30問
次の連立方程式を解きなさい。
[-H-2y=-10
ly=-z+5
(5z+ 2y = 19
|-6z+7y=-4
[4z-9y=5
(10)
|5z-9y=-5
ーa+9y=-9
-2z+ 7y=-7
y=7z-10
[10z+7y=-7
|10z-9y=9
[6x-4y=-9
|8c + 10y =11
z-10y=-6
z+ 5y=9
(12)
|7z-3y=2
[7:ェ-8y=-8
(13)
(-z-9y=-9
(7z+5y =-5
(14)
[-2z-7y =7
「l4ly=0
(y=7z+9
[-10z+3y=5
(7z+y=7
「-2.z+y=6
「-7z+5y=2
(3z+5y =-8
1-3z+2y=-7
(15)
「=10y -3
(16)
エ+ 4y=3,
(5z-y=-9
1-5z-7y=9
連立方程式30問
「-z+8y=13
|9z-8y =11
-7z-2y=D10
y=z+6
(18)
[-9z+2y=-2
(25)
[4z-y=20
(26)
-6z+7y=14
(17)
|22+7y=10
ェ-9y=-10
(6z + 5y = -6
(20)
[7z-5y=-13
(27)
-5z-6y=10
(19)
-8x-3y=5
-82+7y=8
1-z+5y =-11
(28)
15z-9y =15
(9z+ 2y=-8
(21)
y=z+7
[9z-7y=20
(22)
|3z+ 10y= 19
「-6c+5y=-8
(29)
[3z-4y=-3
(30)
y=-8c-3
-10z+7y=0
-8z-9y=-9
(23)
[2z-3y =-7
(24)
1-10z-y=7
15z-3y = -3
Answers
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