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Levart [38]
3 years ago
14

Solve the system of equations by substitution. y = 2x y = x +1​

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

Step-by-step explanation:

y = 2x

y = x + 1

y-1 = x

y = 2x

y = 2 (y - 1)

y = 2y - 1

y = -1

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Cell Phone Company A charges $20 each month plus $0.03 per text. Cell Phone Company B charges $5 each month plus $0.07 per text.
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Yes

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<u>Step 1:  Plug in</u>

-6 = -3(2)

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