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3 years ago

7th Grade Math Please help -7 = 1/3 a Find the value of a

Mathematics

1 answer:

julsineya [31]3 years ago

4 0

Answer:

$\huge\boxed{a=-21}$

Step-by-step explanation:

$-7=\dfrac{1}{3}a\to\dfrac{1}{3}a=-7\qquad|\text{multiply both sides by 3}\\\\3\!\!\!\!\diagup\cdot\dfrac{1}{3\!\!\!\!\diagup}a=(-7)(3)\\\\a=-21$

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