Đáp án:
a. x = -23.16
b. x = -100
Giải thích các bước giải:
a.
$\frac{15.37.9.(x+2)}{29835}$ + $\frac{13.37.9.(2x+45)}{29835}$ - $\frac{13.15.9.(3x+8)}{29835}$ - $\frac{13.15.37.(3x + 69)}{29835}$ = 0
13257x = -307080
x = -23.16361168
b.$\frac{98.97.96.(x+1)}{99.98.97.96}$ + $\frac{99.97.96.(x+2)}{99.98.97.96}$ - $\frac{99.98.96.(x+3)}{99.98.97.96}$ - $\frac{99.98.97.(x+4)}{99.98.97.96}$ = 0
38022x = -3802200
x = -100
