2.25k – 20 = 6.5k + 14 please help me solve this step by step asap!

Question

2.25k – 20 = 6.5k + 14 please help me solve this step by step asap!

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Thu Cúc 3 years 2021-09-04T10:30:24+00:00 1 Answers 2 views 0

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  1. huyenthanh
    0
    2021-09-04T10:31:40+00:00
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    Answer:

    k= -8

    Explaining:

    Move variable to the left-hand side and change its sign.

    2.25k – 6.5k – 20= 6.5k – 6.5k + 14

    Since two opposites add up to zero, remove them from the expression.

    2.25k – 6.5k – 20= 14

    Collect like terms!

    -4.25k = 14 + 20

    Add the numbers

    -4.25k = 35

    Divide both sides of the equation by -4.25

    So you will get the answer: k= -8

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