Solve the system by subtitution y = 3x + 18 y = 5x

Mathematics

1 answer:

elena-14-01-66 [18.8K]3 years ago

3 0

Answer:

x=9

Step-by-step explanation:

y=3x+18=5x

thus 3x+18=5x

subtract 3x from both sides 18=2x

simplify for x x=9

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