Question

x+(x+4)=54 encontre a raiz (valor de x que mantem a igualdade)

Answer 1

Boa noite Lm!

Solução!


$x+(x+4)=54 \\\\ x+x+4=54 \\\\\ 2x+4=54 \\\\\ 2x=54-4 \\\\\ 2x=50 \\\\\ x =\dfrac{50}{2} \\\\\ x=25$

Exercício 2

$(5x-3)+(3x+2)=63 \\\\ 5x-3+3x+2=63 \\\\\ 5x+3x-3+2=63 \\\\\ 8x-1=63 \\\\\ 8x=63+1 \\\\\ 8x=64 \\\\\ x= \dfrac{64}{8} \\\\\ x=8$


Boa noite!
Bons estudos!