solve the linear equation of 3(x+4) = 21
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3(x+4)=21; x+4=21/3=7; x=7-4=3; Please mark the answer as brainliest.
Answered by
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Answer: hey...
3(x+4 ) = 21
3x + 12 = 21
3x = 21-12
3x = 9
x = 9/3
x = 3
Hence the solution for this equation is 3..
Hope it helps it
Mark it as brainalist..
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