Question

giúp mik nha

tìm x:

4.10-x:2=1

5.x:4+3*2=7

6.2:x+5=6

7.2*x*3*5=30

8.2*x:10*2=1

9.18:x-5*2=8

10.5*5-2:x=24

nhớ làm thẳng cột nha.hihi

Answer 1

ai tích mình mình tích lại cho

Answer 2

\(4) 10-x:2=1 \)

    \(=> x:2=10-1\)

    \(=> x:2=9\)

    \(=> x=9.2\)

    \(=> x=18\). Vậy \(x=18\)

\(5) x:4+3.2=7\)

\(=> x:4+6=7\)

\(=> x:4=7-6\)

\(=> x:4=1\)

\(=> x=4\). Vậy \(x=4\)

\(6) 2:x+5=6\)

\(=> 2:x=6-5\)

\(=> 2:x=1\)

\(=> x=2\).Vậy \(x=2\)

\(7) 2.x.3.5=30\)

\(=> 2x.15=30\)

\(=>2x=30:15\)

\(=> 2x=2\)

\(=> x=1\).Vậy \(x=1\)

\(8)2.x:10.2=1\)

\(=> 2x=1:2.10\)

\(=> 2x=5\)

 \(=>x=5:2\)

\(=> x=\frac{5}{2}\).Vậy \(x=\frac{5}{2}\)

\(9)18:x-5.2=8\)

\(=> 18:x-10=8\)

\(=>18:x=8+10\)

\(=>18:x=18\)

\(=> x=1\).Vậy \(x=1\)

\(10)5.5-2:x=24\)

\(=>25-2:x=24\)

\(=> 2:x=25-24\)

\(=>2:x=1\)

\(=>x=2\).Vậy \(x=2\)