Question

alguem mim ajuda dou todas as estrelas:

7.(x-3)=x + 3


calcule

√23,04


(4³/5)

Answer 1

7.(x-3)=x + 3
7x - 21 = x + 3
7x - x = 3 + 21
6x = 24
x = $\frac{24}{6}$
x = 4

√23,04 = √$\frac{2304}{100}$ = √$\frac{ 48^{2} }{10^{2} }$ = $\frac{48}{10}$ =  4,8

4³/5 = $\frac{64}{5}$ = 12,8