\(60\%.x+\frac{2}{3}.x+3=680\)
\(\frac{3}{5}.x+\frac{2}{3}.x+x=680\)
\(\left(\frac{3}{5}+\frac{2}{3}+1\right).x=680\)
\(\frac{34}{15}\cdot x=680\)
\(x=680\div\frac{34}{15}\)
\(x=300\)
Vậy ...
60%x + 2/3 x + x=680
tìm x biết
a)680-(5x+60)=425
b){x-[5^2+(3^5-80.3)^3-51]^50+14}=20
Bài 1 : Tìm số tự nhiên x biết :
a)680-(5x+60)=425
b){x-[5^2+(3^5-80.3)^3-51]^50+14}=20
Tính nhanh:
a) 2 x 31 x 12 + 4 x 6 x 42 + 8 x 27 x 3
b) 583 x 931 + 69 x (170 + 583) + 31 x 170
c) 732 x 976 + 24 x (680 + 732) + 76 x 680
\(\frac{1}{3}X+\frac{3}{4}X-75\%=-5\frac{1}{4}\)
\(60\%.X+\frac{2}{3}X=-76\)
Tìm x
\(60\%x+\frac{2}{3}.x=\frac{1}{3}.6\frac{1}{3}\)
\(\left(60\%X+\frac{2}{3}X-\frac{8}{9}\right):\frac{1}{3}=\frac{11}{3}\)
Tim x biet
a) \(60\%x+\frac{2}{3}x=\frac{1}{3}.6\frac{1}{3}\)
b) \(3\left(3x-\frac{1}{2}\right)^3+\frac{1}{9}=0\)
Tìm x:
\(2\frac{3}{4}x=3\frac{1}{7}:0,01\)
\(2\frac{1}{3}:\frac{1}{3}=\frac{7}{9}:x\)
\(3,2x+\left(-1,2\right)x+2,7=-4,9\)
\(x:\frac{9}{14}=\frac{7}{3}:x\)
\(\frac{37-x}{x+13}=\frac{3}{7}\)
\(\frac{x}{15}=\frac{-60}{x}\)