3 years ago

Explain how to verify that 3(2x + 5) = 9 + 3x and x = –2 are equivalent equations.

1 answer:

6 0

3 times (2x + 5) is 6x + 15.

6x + 15 = 9 + 3x.

Group by like terms. 6 = -3x

Divide to get x by itself. 6/-3 = -2

Thus -2 = x

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