Question

how to solve this linear equation 3(x+4)=21​

Answer 1

Step-by-step explanation:

$3(x + 4) = 21 \\ 3x + 12 = 21 \\ 3x = 21 - 12 \\ 3x = 9 \\ x = 3$

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Answer 2

Step-by-step explanation:

3(x+4)=21

3x+12=21

3x=21-12

3x=9

x=9/3

x=3