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9 January, 12:33

The system of linear equations 5x+3y=3 and X+y=-1 is graphed below.

What is the solution to the system of equations?

O (4,3)

O 1-3.4)

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Answers (1)
  1. 9 January, 12:40
    0
    (3, - 4) is the solution to the system of equations.

    Step-by-step explanation:

    1. Rewrite one of the equations so it eighter starts with y = or it starts with x=

    Here the easy way is to write X+y=-1 in the form x=

    X = - y - 1

    2. Substitute X = - y - 1 in the other equation 5X+3y=3:

    5X+3y=3

    X = - y - 1

    5 ( - y - 1) + 3y=3

    -5y - 5 + 3y = 3

    -2y = 3 + 5

    2y = - 8

    y = - 4

    3. Now substitute this value y = - 4 in X = - y - 1

    X = - (y) - 1

    y = - 4

    X = - ( - 4) - 1

    X = 4 - 1

    X = 3

    4. So X = 3 and y = - 4 gives this coordinate (3, - 4), which is the solution to the system of equations.
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