Question

x = 4 is a solution of 2x + 4 = 12. true or false​

Answer 1

Answer:

2x + 4 = 12

=> 2x = 12 - 4

=> x = 8

2

=> x = 4

therefore it's true..

Step-by-step explanation:

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Answer 2

$2x + 4 = 12 \\ 2 \times 4 + 4 = 12 \\ 8 + 4 = 12 \\ 12$