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evablogger [386]
3 years ago
9

Solve the systems of equations using substitution

Mathematics
1 answer:
marishachu [46]3 years ago
7 0

Answer:

C

Step-by-step explanation:

y = 2x + 3 \\ y = 3x + 1 \\ 2x = y - 3 \\ x = 0.5y - 1.5 \\ y = 3(0.5y - 1.5) + 1 \\ y = 1.5y - 4.5 + 1 \\ y  - 1.5y =  - 3.5 \\ 0.5y = 3.5 \\ y =  7

x = 0.5(7) - 1.5 \\ x = 3.5 - 1.5 \\ x = 2

(2, 7)

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5 0
3 years ago
Angle x and y are complementary. Angle x is supplementary to a 128º angle.
tiny-mole [99]

Answer:

x = 52

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Step-by-step explanation:

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3 years ago
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3 years ago
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pishuonlain [190]

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