3 years ago

Please help!! I don’t understand how to do this problem

Mathematics

1 answer:

Oxana [17]3 years ago

5 0

Answer:

Step-by-step explanation:

$y = 3x \\ \frac{y}{3} = x \\ \\ \frac{3y}{3} + 2y = 45 \\ y + 2y = 45 \\ 3y = 45 \\ y = \frac{45}{3} \\ y = 15 \\ \\ x = \frac{y}{3} \\ = \frac{15}{3} \\ = 5$

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