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15 November, 19:48

Use the elimination method to solve the system of equations. Choose the

correct ordered pair.

3x + 5y = 48

-3x + 5y = 12

+2
Answers (2)
  1. 15 November, 20:02
    0
    Answer: x=6

    Step-by-step explanation:

    Let's solve your system of equations by elimination.

    3x+5y=48; -3x+5y=12

    Steps:

    3x+5y=48

    -3x+5y=12

    Add these equations to eliminate x:

    10y=60

    Then solve

    10y=60

    for y:

    10y/10=60/10

    (Divide both sides by 10)

    y=6

    Now that we've found y let's plug it back in to solve for x.

    Write down an original equation:

    3x+5y=48

    Substitute

    6 for y in 3x+5y=48:3x + (5) (6) = 48

    3x+30=48

    (Simplify both sides of the equation)

    3x+30+-30=48+-30

    (Add - 30 to both sides)

    3x=18

    3x/3=18/3

    (Divide both sides by 3)

    x=6
  2. 15 November, 20:02
    0
    Answer: x=6

    Y=6

    Step-by-step explanation:

    Using the elimination method

    3x+5y=48 ... equ1

    -3x+5y=12 ... equ2

    Add equation 1 &2

    3x+5y=48

    +

    -3x+5y=12

    Answer =

    10y=60

    Y=60/10

    Y=6

    Substitute for y in equation 1

    3x+5y=48

    3x+5 (6) = 48

    3x+30=48

    3x=48-30

    3x=18

    X=18/3

    X=6

    Therefore,

    X = 6

    Y = 6
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