you have to multiply everything in the parentheses by 21, so your new equation is 42-21x+12x=44 then reduce your x's on the left side, so -21+12 is -9, so your next equation would be 42-9x=44 then subtract 42 from each side to get x by itself, so then you get -9x=2 then divide each side by -9, so then x=2/-9!
The solution to the equation 21 ( 2 − x ) + 12 x = 44 is x = − 9 2 . This is found by distributing, combining like terms, isolating x , and then solving for it. The final answer indicates that x is a negative fraction.
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Jawab: 48, 96, ...Penjelasan dengan langkah-langkah:dikalikan 2