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4 years ago

Solve, using the substitution method.

1 answer:

6 0

5x+2y=7
y=x-7

5x=7-2y
5x=7-2(x-7)
5x=7-2x+14
5x+2x=7+14
7x/7=21/7
x=3

y=x-7
y=3-7
y=-4

Answer is B

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3 years ago

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3 years ago

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3 years ago

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3 years ago

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