Question

Amelie solves the following system of equations.

Answer 1

Answer: x = 15, y = 5

Step-by-step explanation:

The given system is $x+y=20.........................(1)//3x-3y+30...............................(2)$

Multiplying 3 on both sides of equation (1), we get

$3x+3y=60.........................(3)$

Now, adding (2) and (3), we get

$6x=90\\\\\Rightarrow\ x=15$

Substitute the value of x in (1), we get

$15+y=20\\\\\Rightarrow\ y=20-15\\\\\Rightarrow\ y=5$

Hence, the of x and y satisfy this system of equations is x = 15, y = 5.

Answer 2

Answer:

The answer is : X=15,Y=5

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