solve this system using substitution x+5y=-32 y=3x

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solve this system using substitution x+5y=-32 y=3x

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6 months 2021-07-16T11:54:39+00:00 1 Answers 2 views 0

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    2021-07-16T11:55:43+00:00

     \huge \colorbox{pink}{Question }

    solve this system using substitution x+5y=-32 y=3x

    Substitute 3x for y in x + 5y = – 32

    x + 5y =  - 32 \\ x + 5(3x) =  - 32 \\ x + 15x =  - 32 \\ 16x =  - 32 \\  \frac{16x}{16}  =  \frac{ - 32}{16}  \\ x =  - 2

    Substitute – 2 for for x in y = 3x

    y = 3x \\ y = 3( - 2) \\ y =  - 6

     \huge \colorbox{pink}{Answer}

    x = – 2

    y = – 6

    Hope it helps ^_^

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )