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18 August, 04:38

2+2X=?

when X = 2+5Y

when Y = 5*Z^2

when Z = 2

+1
Answers (2)
  1. 18 August, 05:41
    0
    Can you give me the brainliest?

    we can find the y first

    as we know z = 2 we can put it in the equation y = 5*z^2

    y = 5 (2) ^2

    y = 5 (4)

    y = 20

    now we can put the value of y into X = 2+5Y

    X = 2+5 (20)

    X = 2 + 100

    X = 102

    now we can put the value of x in 2+2X=?

    =2+2 (102)

    = 2 + 204

    = 206

    so 2 + 2x = 206
  2. 18 August, 06:11
    0
    Since you know Z = 2, you can plug it into:

    Y = 5 · Z²

    Y = 5 · (2) ²

    Y = 5 · 4

    Y = 20

    Now that you know Y = 20, you can plug it into:

    X = 2 + 5Y

    X = 2 + 5 (20)

    X = 2 + 100

    X = 102

    Now that you have X, plug it into "2+2X=?"

    2 + 2x = ?

    2 + 2 (102) = ?

    2 + 204 = ?

    206 = ?
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