Question

Tìm số nguyên x, biết

a) x-(-2)=6

b) -x+23=14-47

Answer 1

a, x -(-2) =6

suy ra x + 2 =6

Suy ra x=4

b, -x + 23 = 14 -47

suy ra -x + 23 = -33

Suy ra -x = -56

suy ra x= 56

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Answer 2

a) x-(-2)=6

x +2=6

x=6-2

x=3

b) -x+23=14-47

-x+23=-33

-x=-33-23

-x=-56

\(\Rightarrow\)x=56

Answer 3

a, x - (-2) = 6

=> x + 2 = 6

=> x = 6 - 2 = 4

b, -x + 23 = 14 - 47

=> -x + 23 = - 33

=> -x = -33 - 23 = - 56

=> x = 56

Answer 4

\(a,\)\(x-\left(-2\right)=6\)

\(\Rightarrow x+2=6\)

\(\Rightarrow x=4\)

Answer 5

\(b,\)\(-x+23=14-47\)

\(\Rightarrow-x+23=-33\)

\(x=56\)