Question

a/\(13-2\times\left(36-5\times x\right)=1\)1

b/ \(53-10\times\left(40-7\times x\right)=3\)

c/\(\frac{3}{4}-\frac{1}{6}\div x=0,375\)

Answer 1

bài mình mới ra sai đề rồi các bạn đừng làm

Answer 2

đề chính xác là

a/ \(13-2\times\left(36-5\times x\right)=1\)

b/ \(53-10\times\left(40-7\times x\right)=3\)

c/ \(\frac{3}{4}-\frac{1}{6}\div x=0,375\)

Answer 3

a) \(13-2\times\left(36-5\times x\right)=1\)

 \(2\times\left(36-5\times x\right)=13-1\)

\(2\times\left(36-5\times x\right)=12\)

\(36-5\times x=12\div2\)

\(36-5\times x=6\)

\(5\times x=36-6\)

\(5\times x=30\)

\(x=30\div5\)

\(x=6\)

Answer 4

13-2*(36-5*x)=1

2*(36-5*x)=12

36-5*x=6

5*x=30

x=6

b)53-10*(40-7*x)=3

10*(40-7*x)=50

40-7*x=5

7*x=35

x=5

c)\(\frac{3}{4}-\frac{1}{6}\)/x=\(\frac{3}{8}\)

\(\frac{1}{6}\)/x=\(\frac{3}{8}\)

x=\(\frac{3}{8}\)/\(\frac{1}{6}\)

x=\(\frac{9}{4}\)

Answer 5

3/4-1/6:x=0,375

1/6:x=3/4-3/8

1/6:x=6/8-3/8

1/6:x=3/8

x=1/6:3/8

x=1/6x8/3

x=4/9

Answer 6

13-2(36-5x)=11

2(36-5x)=13-11

2(36-5x)=2

(36-5x)=2:2

(36-5x)=1

5x=36-1

5x=35

x=35:5

x=7

Answer 7

b)53-10.(40-7x)=3

10(40-7x)=53-3

10(40-7x)=50

   (40-7x)=50:10

   (40-7x)=5

         7x=40-5

         7x=35

           x=35:7

           x=5