Question

resolva as equações do primeiro grau​

Answer 1

Olá!

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${ \large \displaystyle \sf {a) \: 5x - 10 = 60}}$

${ \large \displaystyle \sf {5x = 60 + 10}}$

${ \large \displaystyle \sf {5x = 70}}$

${ \large \displaystyle \sf {x = \frac{70}{5} }}$

${ \green{ \boxed{ \boxed{ \pink{{ \large \displaystyle \sf {x = 14}}}}}}}$

${ \large \displaystyle \sf {b) \: 2(x - 3) = 20}}$

${ \large \displaystyle \sf {2x - 6 = 20}}$

${ \large \displaystyle \sf {2x = 20 + 6}}$

${ \large \displaystyle \sf {2x = 26}}$

${ \large \displaystyle \sf {x = \frac{26}{2} }}$

${ \green{ \boxed{ \boxed{ \pink{{ \large \displaystyle \sf {x = 13}}}}}}}$

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Espero ter ajudado! ❤️