Question

me ajudem por favorrrrrrrrr​

Answer 1

Resposta:

$a)\\ 4x+2=38\\ 4x=38-2\\ 4x=36\\ x=36:4\\ x=9$

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$b)\\ 9x=6x+12\\ 9x-6x=12\\ 3x=12\\ x=12:3\\ x=4$

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$c)\\ 5x-1=3x+11\\ 5x-3x=11+1\\ 2x=12\\ x=12:2\\ x=6$

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$d)\\ 2x+8=x+13\\ 2x-x=13-8\\ x=5$

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$e)\\ 4x-7=2x-8\\ 4x-2x=-8+7\\ 2x=-1\\ x=-{1\over2}$

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$f)\\ 3+x=0\\ x=-3$

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$g)\\ 23x+2=2\\ 23x=2-2\\ 23x=0\\ x=0:23\\ x=0$

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$h)\\ 12-7+4x=25\\ 5+4x=25\\ 4x=25-5\\ 4x=20\\ x=20:4\\ x=5$

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$i)\\ 5x-3x=30\\ 2x=30\\ x=30:2\\ x=15$

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$j)\\ 4x+10=45-3x\\ 4x+3x=45-10\\ 7x=35\\ x=35:7\\ x=5$