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MathematicsMathematics
3 September, 10:16

How do you solve the system of linear equation by multiplying?

5x - 2y = 11

3x + 5y = 19

+5
Answers (1)
  1. 3 September, 13:40
    0
    5x-2y=11 X = (11+2•2) #5

    5x=11+2y X=15#5

    X = (11+2y) #5 X=3

    3x+5y=19

    3• (11+2y) #5+5y=19

    (33+6y) #5+5y=19

    (33+6y+25y) #5=95#5

    33+31y=95

    31y=62

    Y=2

    #significa divisão

    •significa multiplicação
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