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14 March, 02:45

A system of equations is shown below:

y = x + 3

2x + y = 9

A.) (2, 5)

B.) (5, 2)

C.) (-2, 5)

D.) (2, - 5)

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Answers (1)
  1. 14 March, 03:13
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    A.) (2, 5)

    step by step explanation.

    y = x + 3

    2x + y = 9

    we can either use the substitution method or the addition method I will use substitution

    y = x + 3

    y=-2x+9

    If the left sides are equal then we can write it as x+3 = - 2x+9

    x+3 = - 2x+9

    x+2x = 9 - 3

    3x = 6

    divide both sides by 3

    x = 2

    now we can put 2 in any of the above two equation and we will get our y

    y = x + 3

    by putting the value of x

    y = 2 + 3

    y = 5 so we know the answer is A. (2, 5)
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