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22 March, 16:32

Solve the system using substitution. y = 2x + 4, 2x - y = 6

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  1. 22 March, 16:44
    0
    no solution

    substitute y = 2x + 4 into the other equation

    2x - (2x + 4) = 6 (distribute and simplify)

    2x - 2x - 4 = 6 (add 4 to both sides)

    0 = 10 ← not possible

    Hence the system has no solution
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