Question

Escreva as expressões algébricas mais simples e equivalentes a cada uma destas:

Answer 1

a)$a) \frac{2x}{2} + \frac{8}{2} = x +4 \\ x= -4 \\ \\ b) \frac{2x+10x+4+3x-4 }{5} \\ \frac{12x+4+3x-4}{5} \\ \frac{15x}{5}=3x \\ x= \frac{0}{3} \\ x=0 \\ \\ c) x-3x-3+3x+5-2x-6-x \\ x-3+5-2x-6-x \\ -3+5-2x-6 \\ 2-2x-6 \\ -2x=4 \\ x=\frac{4}{-2} = -2$