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MATH / If 2a+4b=5 and a is equal to three times b, what is 3a?

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problem

If 2a+4b=52a+4b=5 and aa is equal to three times bb, what is 3a3a?
Plain-text mathematical notation (without MathML)
If 2a+4b=5 and a is equal to three times b, what is 3a?
Original LaTeX notation
If $2a+4b=5$ and $a$ is equal to three times $b$, what is $3a$?

level

Level 2

type

Algebra

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