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Solve by substitution
-4.5x - 2y = -12.5
3.25x - y= -0.74
I know the answer. Can someone just give steps?

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(Based on todays review)

  • s1m1

    In second equation add 0.74 and y to both sides: 3.25x+0.74=y;
    Substitute y in the first equation: -4.5x-2(3.25x+0.74)=-12.5;
    Distribute multiplication over addition:
    -4.5x-6.50x -1.48=-12.5;
    Combine like terms and add 1.48 to both sides:
    -11x= -12.5+1.48;
    -11x= 11.02 divide both sides by -11;
    X= -11.02/11= -1.00(18)
    Y= 3.25• -1.00(18)+.74= -2.515(90)