Question

25 - (x + 5) = -415 - (15 - 415 )

giúp mik vs mik rối quá trời

Answer 1

25-(x+5)= -415 - (15 - 415)

<=> 25 - x - 5 = -415 - 15 + 415

<=> -x = -415 -15 + 415 - 25 

<=> -x = -40

<=> x = 40 

Answer 2

k ghi lại đề nha :>

\(25-x-5=415-\left(-400\right)\))

20 - x = -415 + 400 

20 - x = -15 

-x = -15 - 20 

-x = -35 

x = 35 

Answer 3

\(25-\left(x+5\right)=-415-\left(15-415\right)\)

\(\Leftrightarrow\)\(25-\left(x+5\right)=-415-\left(-400\right)\)

\(\Leftrightarrow\)\(25-\left(x+5\right)=-415+400\)

\(\Leftrightarrow\)\(25-\left(x+5\right)=-15\)

\(\Leftrightarrow\)\(\left(x+5\right)=25-\left(-15\right)\)

\(\Leftrightarrow\)\(\left(x+5\right)=25+15\)

\(\Leftrightarrow\)\(x+5=40\)

\(\Leftrightarrow\)\(x=40-5\)

\(\Leftrightarrow\)\(x=35\)

Answer 4

Um mik cũng không biết