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Please help urgent 30 points

Please help urgent 30 points-example-1
User WoMo
by
7.9k points

2 Answers

6 votes

Explanation:

system A to system B :

-3 × equation A1 -> equation B1

5 × equation B2 + equation B1 = equation C1

User Jimothy
by
8.3k points
4 votes

Answer:

1. How do we transform System A into System B

Answer is First choice with -3 filled in box

-3 x Equation [A1] ⇒ Equation [B1] (first choice; fill in -3)

2. How do we transform System B into System A

answer is the Last choice with 5 filled in the box

5 x Equation [B2] + Equation [B1] => Equation [C1]
In the last choice fill in 5 in the box

Explanation:

-3 x [A1] => -3 (-9x - 5y = -2)

=> - 3(-9x) -3(-5y) = 3(-2)

=> 27x + 15y = 6 which is B1

5 x [B2]

=> 5(-4x - 3y) = 5(3)

=> -20x -15y = 15

5 x [B2] + B1

=>

-20x -15y = 15
+
27x + 15y = 6

----------------------

7x + 0 = 21

or 7x = 21 which is C1

User Joeblade
by
8.0k points

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