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Damm [24]
3 years ago
11

Use the model to solve for x. A) x = 1 B) x = 3 C) x = 5 D) x =

Mathematics
1 answer:
Novay_Z [31]3 years ago
7 0

Answer:

<h3>            D){?}    x = 7</h3>

Step-by-step explanation:

x + 3•(+1) = 2•x + 4•(-1)

x + 3  =  2x - 4

  -3         -3

 x  =  2x - 7

-2x      -2x

- x  =  -7

÷(-1)     ÷(-1)

  x = 7

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