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13 February, 02:50

X + y = 6

3x = y + 6

Using the two equations, solve for x.

A.

x = 3

B.

x = 8

C.

x = 6.5

D.

x = 7

+5
Answers (1)
  1. 13 February, 05:04
    0
    i solve it by substitution

    y=6 - x

    3x=6-x+6

    3x=12-x

    +x + x

    4x=12

    x=12/4

    x=3

    y=6-3

    y=3
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