$\frac{x – 5}{45}$ + $\frac{x – 4}{40}$ + $\frac{x – 15}{35}$ + $\frac{x – 10}{30}$ = 0 Giúp mik với! 05/09/2021 Bởi Reese $\frac{x – 5}{45}$ + $\frac{x – 4}{40}$ + $\frac{x – 15}{35}$ + $\frac{x – 10}{30}$ = 0 Giúp mik với!
$\frac{x-5}{45}$ + $\frac{x-4}{40}$ + $\frac{x-15}{35}$ + $\frac{x-10}{30}$ = 0 $\frac{56(x-5)}{45.56}$ + $\frac{63(x-4)}{63.40}$ + $\frac{72(x-15)}{72.35}$ + $\frac{84(x-10)}{30.84}$ = 0 $\frac{56x-280+63x-252+72x-1080+84x-840}{2520}$ = 0 Bình luận
$\frac{x-5}{45}$ + $\frac{x-4}{40}$ + $\frac{x-15}{35}$ + $\frac{x-10}{30}$ = 0
$\frac{56(x-5)}{45.56}$ + $\frac{63(x-4)}{63.40}$ + $\frac{72(x-15)}{72.35}$ + $\frac{84(x-10)}{30.84}$ = 0
$\frac{56x-280+63x-252+72x-1080+84x-840}{2520}$ = 0