Answered

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Select the correct answer.

A system of equations and its solution are given below.

System A
x + y = 8
4x - 6y = 2
Solution: (5,3)

Choose the correct option that explains what steps were followed to obtain the system of equations below.

System B
x + y = 8
10x = 50

Sagot :

mtngkhoi

Answer:

B will be the answer...

Step-by-step explanation:

The second equation in system B is only in terms of y, so we need to use elimination to eliminate the x term from the second equation in system A.

To do that, we need to multiply the first equation by 5.

5 (-x − 2y = 7)

-5x − 10y = 35

Add to the second equation.  Notice the x terms cancel out.

(-5x − 10y) + (5x − 6y) = 35 + (-3)

-16y = 32

Combining this new equation with the first equation from system A will get us system B.

-x − 2y = 7

-16y = 32

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