pk4mk
pk4mk
22.03.2021 • 
Mathematics

Answer two questions about Systems A
AA and
B
BB:
System
A
AA
start text, end text System
B
BB
{
x

4
y
=
1
5
x
+
6
y
=

5










x−4y=1
5x+6y=−5


{
x
=
1
+
4
y
5
x
+
6
y
=

5










x=1+4y
5x+6y=−5


1) How can we get System
B
BB from System
A
AA?

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