Lời giải:
$(32-x:5):13=2$
$32-x:5=13.2=26$
$x:5=32-26=6$
$x=6.5=30$
\(2^x\times2^{x+1}=10^{19}\div5^{19}\)
Tìm số dư của phép tính \(\left(2^{70}+3^{70}\right)\div13\)
Tính:
\(a.\left(3^{35}+3^{34}-3^{33}\right)\div3^{32}\)
\(b.5^3\times37+5^3\times64-5^7\div5^4\)
Nhanh tay lên đc tick nha
Tìm x
\(134\div\left(x-3\right)=35+160\div5\)
Tìm x, biết:
\(6x+x=5^{11}\div5^9+3^1\)
\(\left(\frac{5\alpha}{2}-2\right)\div5=\left(\frac{-3}{10}\right)\)
Tìm x
\(23+3X=5^6\div5^3\)
\(\left(X-6\right)^2=9\)
\(3^{\left(X+3\right)}=81\div1)\left(2X-5\right)^3=8\)
tìm \(x\in Z\)biết :
a, \(71+\left(26-3x\right)\div5=75\)
b, \(\left(5x-2\right)\cdot6^3=3\cdot6^5\)
c, \(\left(3x-2^4\right)\cdot7^3=2\cdot7^4\)
tính
a, \(\frac{4\frac{1}{2}.5\frac{2}{3}}{6\frac{2}{4}}\)
b, \(\frac{-1\div1.\frac{1}{5}}{3\frac{1}{8}\div6\frac{2}{3}}\)\(\div\)\(\frac{4\frac{7}{4}\div13}{5\div1\frac{7}{8}}\)
