3 years ago

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:

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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