Question

resolva as equações de primeiro grau a seguir

a)3x+16=2x+3 c)6x =40 +x

b)4x = 48 d)8+x =10​

Answer 1

Olá!

$\\ { \large \displaystyle \sf \: {a)3x + 16 = 2x + 3}}$

${ \large \displaystyle \sf {3x - 2x = 3 - 16}}$

$\boxed{ \boxed{ \red{{ \large \displaystyle \sf {x = - 13}}}}}$

${ \large \displaystyle \sf {b) \: 4x =48 }}$

${ \large \displaystyle \sf {x = \frac{48}{4} }}$

$\boxed{ \boxed{ \red{{ \large \displaystyle \sf {x = 12}}}}}$

${ \large \displaystyle \sf {c) \: 6x = 40 + x }}$

${ \large \displaystyle \sf { 6x - x = 40}}$

${ \large \displaystyle \sf { 5x= 40}}$

${ \large \displaystyle \sf {x = \frac{40}{5} }}$

$\boxed{ \boxed{ \red{{ \large \displaystyle \sf {x = 8}}}}}$

${ \large \displaystyle \sf {d) \: 8 + x = 10 }}$

${ \large \displaystyle \sf {x = 10 - 8 }}$

$\boxed{ \boxed{ \red{{ \large \displaystyle \sf {x = 2}}}}}$