-12.(x-5)+7(3-x)=5
giúp tớ vs ạ!!!
7/4 -(x + 5/3 )=-12/5
mng giúp mình vs ạ
Giúp mik câu này mik đag cần gấp
Tính :
1)3/5 x1/7 +3/5 x6/7 -3/5
2)6/7 x4/9 + 6/7 x5/9 + 6/7
3) 9/13 x 7/12 + 9/13 x 5/12 - 9/13
4) 4/13 x5/12 +4/13 x 7/12 - 4/13
2.(x-5)-3(x+7)=14
Giúp vs ạ!!
1; (x - 3/5) : -1/3 = 2/5
2; 3/7 x - 2/3 x = 10/21
Ai giúp mk vs ạ mk cần gấp lắm mơn
A) X+6 /8 + x+8/6 +x+1/13 +3=0 B) x-5/10 +x-7/8+x-1/14=13 Giúp mk vs ạ
M.n giúp mk bài toán vs ạ
\(\frac{3}{4}-\frac{3}{5}+\frac{3}{7}+\frac{3}{11}\)
\(\frac{13}{4}-\frac{13}{5}+\frac{13}{7}+\frac{13}{11}\)
\(\left|\dfrac{1}{2}+\dfrac{-2}{3}\right|\dfrac{24}{7}-\dfrac{4}{7}.\dfrac{3}{5}+\dfrac{2}{5}.\left(\dfrac{-4}{7}\right)\)
Chỉ e vs ạ
Giải hộ mk bài 5 vs 7 ạ
Tính bằng 2 cách :\(A=\left(6-\frac{2}{3}+\frac{1}{2}\right)-\left(5+\frac{5}{3}-\frac{3}{2}\right)-\left(3-\frac{7}{3}+\frac{5}{2}\right)\)
Giúp vs ạ!