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3 years ago

8

Solve the system by the linear combination method show all work carefully

1 answer:

suter [353]3 years ago

7 0

<span>A-2b=2
A-b=6

</span>
<span>A-2b=2
-2(A-b=6)
-2A+2b= -12

A-2b=2
-2A+2b = -12
-------------------
-A = -10
-A/-1 = -10/-1

A = 10

a-b=6
10 - b = 6
10-10-b = 6 -10
-b = -4
-b/-1 = 14/-1
b= 4

Check
a - 2b =2
10 - 2(4) =2
10 - 8 = 2
2=2

</span>

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