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15 July, 13:35

Use a graphing calculator to solve the system of linear equations. 2.1x+4.2y=14.7 - 5.7x-1.9y=-11.4

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  1. 15 July, 13:50
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    I used my calculator and got x=1 y=3

    solve for y to put them in your calculator

    2.1x+4.2y=14.7

    y = (14.7 - 2.1x) / 4.2

    -5.7x-1.9y=-11.4

    y = (-11.4 + 5.7x) / (-1.9)

    then using the ploting tool I plotted them and found where they intersected
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