Question

541 + ( 218 - x ) = 375 

5 . ( x + 35 ) = 515 

10 + 2.x = 4⁵ : 4 

96 - 3 . ( x +1 ) = 42 

ai làm nhanh mình tick nhé . ok

Answer 1

541+(218-x)=375

541+218-x=375

759-x=375

x=384

5 .(x+35)=515

x+35=103

x=68

10+2.x=4^5:4

10+2.x=256

2x=246

x=123

96-3.(x+1)=42

3(x+1)=54

x+1=18

x=17

=.= hok tốt!!

Answer 2

\(541+\left(218-x\right)=375.\)

\(\Leftrightarrow218-x=-166\)

\(\Leftrightarrow x=218-\left(-166\right)\)

\(\Leftrightarrow x=384\)

\(5.\left(x+35\right)=515\)

\(\Leftrightarrow x+35=103\)

\(\Leftrightarrow x=103-35\)

\(\Leftrightarrow x=68\)

\(10+2x=4^5:4\)

\(\Leftrightarrow10+2x=4^4\)

\(\Leftrightarrow10+2x=256\)

\(\Leftrightarrow2x=256-10\)

\(\Leftrightarrow2x=246\)

\(\Leftrightarrow x=123\)

\(96-3.\left(x+1\right)=42\)

\(\Leftrightarrow3.\left(x+1\right)=96-42\)

\(\Leftrightarrow3\left(x+1\right)=54\)

\(\Leftrightarrow x+1=54:3\)

\(\Leftrightarrow x+1=18\)

\(\Leftrightarrow x=17\)

Answer 3

541 + ( 218 - x ) = 375

<=> 218 - x = 375 - 541

<=> 218 - x = -166

<=> x = 218 + 166

<=> x = 384

Answer 4

541 + (218 - x) = 375

=> 218 - x = 375 - 541

=> 218 - x = -166

=> x = 218 + 166

=> x = 384

Answer 5

5(x+35) = 515

=> x + 35 = 103

=> x = 68

vậy_

Answer 6

10 + 2x = 4^5  : 4

=> 10 + 2x = 4^4 

=> 10 + 2x = 256

=> 2x = 246

=> x = 123

Answer 7

96 - 3(x + 1) = 42

=> 3(x + 1) = 54

=> x + 1 = 17

=> x = 16

vậy_