Question

resover equação 1grau com parentese
3 (x-4)=80-2 (3x+1)​

Answer 1

$\large{3(x - 4) = 80 - 2(3x + 1)}$

$\large{3x - 12 = 80 - 6x - 2}$

$\large{3x - 12 = 78 - 6x}$

$\large{3x + 6x = 78 + 12}$

$\large{9x = 90}$

$\large{x = 90 \div 9}$

$\large \boxed{ \: \red{x = 10 \: }}$

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Att, IzabelaCristina2006 ❤️ ♈