3 years ago

21-7x=7(3-x) Solve this please!!!!!!!!!!

Mathematics

2 answers:

Elena-2011 [213]3 years ago

4 0

$21 - 7x = 7(3 - x)\\21 - 7x = 21 - 7x\\-7x + 7x = 21 - 21\\x \in \mathbb{R}$

Hunter-Best [27]3 years ago

3 0

Answer:

All real numbers

Step-by-step explanation:

21 - 7x = 7(3 - x)

21 - 7x = 21 - 7x

Since both sides of the equation are equal, the answer is all real numbers.

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