A and B solve the system of equations ax + by = 2cx − 3Y = − 2, a correctly solves x = 1y = − 1, B wrongly copies C solution to x = 2Y = − 6, and find the values of a, B and C

A and B solve the system of equations ax + by = 2cx − 3Y = − 2, a correctly solves x = 1y = − 1, B wrongly copies C solution to x = 2Y = − 6, and find the values of a, B and C

Substituting x = 1y = - 1 into the original system of equations, we get A-B = 2C = - 5, substituting x = 2Y = - 6 into ax + by = 2, we get 2a-6b = 2. The system of equations A-B = 2C = - 52a-6b = 2, we get a = 2.5B = 0.5c = - 5

One Sunday, Xiao Ming and Xiao Wen solved a system of quadratic equations {ax + by = 16} together
Help me quickly. It's very important. Thank you
thank you

Substituting x = - 1, y = 3 into BX + ay = 1, we get
1＝-b+3a
Let x = 3, y = 2, and substitute ax + by = 16
16=3a+2b
The solution is b = 5
a=2
16=2x+5y
1=5x+2y
y=26/7
x=-9/7

If the solution of (m-n) x + y = 5, NX + my = 6 is x = 1, y = 2, find m and n

X = 1, y = 2 are substituted into the equations (m-n) x + y = 5, NX + my = 6
m-n =3
n+2m =6
The two formulas are as follows
3m =9
m =3
So: n = M-3 = 0
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She is ten years old

She is ten years old.

What is 10-year-old English?

ten years old

I have lived here since I was ten years old
I have lived here since I was ten.
still
I have living here since I was ten.
Or are they all wrong
I （ ） （ ） here （ ） I was ten.

I have been living here since I was ten.
I have lived here since I was ten years old, so I still live here now
）
Then fill in have live since

How to read March 2001 in English

March Two thousand and one

How to read 1 / 3 in English

one third

How to read English 5-3 = 2

Five minus three is/means two.
Hope to help the landlord

How to read in English

two to one