Question

4(x-1)+[(4.750-2150)-(1750-1160) = 3000

Answer 1

TínhA = \(\frac{67^3+52^3}{119}\)+ 67.52

Answer 2

\(4.\left(x-1\right)+\left[\left(4.750-2150\right)-\left(1750-1160\right)\right]=3000\)

\(\Rightarrow4.\left(x+1\right)+\left[3000-2150\right]-690=3000\)

\(\Rightarrow4.\left(x+1\right)+850-690=3000\)

\(\Rightarrow4.\left(x+1\right)+160=3000\)

\(\Rightarrow4.\left(x+1\right)=3000-160=2840\)

\(\Rightarrow x+1=2840:4=710\)

\(\Rightarrow x=710-1=709\)

Vậy x = 709