Question

Resolva ,U=IN

a)4x+2=2(x-3)

b) 5x-8=2(x-2)

ME AJUDEM PFVR

Answer 1

$\text{Resolva, U} = \mathbb{N} \\ \\ a) \: 4x + 2 = 2(x - 3) \\ 4x + 2 = 2x - 6 \\ 4x - 2x = - 6 - 2 \\ 2x = - 8 \\ x = - \frac{8}{2} \\ \bf{x = - 4} \\ \\ \bf{ S= \{ - 4 \}}$

$b) \: 5x - 8 = 2(x - 2) \\ 5x - 8 = 2x - 4 \\ 5x - 2x = - 4 + 8 \\ 3x = 4 \\ \bf{x = \frac{4}{3} } \\ \\ \bf{S =\{ \frac{4}{3} \} }$

Espero ter ajudado! :)