Question

tìm x

x - 58 : 2 = 17

(  x - 58 ) : 2 = 17

125 + ( 145 - x ) = 175

X x  \(\frac{2}{5}=\frac{4}{5}:\frac{2}{3}\)

x + 3,75 + 4x = 24,25

( ai làm đúng mình tick cho )

 

Answer 1

x - 58 : 2 = 17

x - 29 = 17

x = 17 + 29

x = 46

( x - 58 ) : 2 = 17

x - 58 = 17 x 2

x - 58 = 34

x = 34 + 58

x = 92

125 + ( 145 - x ) = 175

145 - x = 175 - 125

145 - x = 50

x = 145 - 50

x = 95

\(x\times\frac{2}{5}=\frac{4}{5}:\frac{2}{3}\)

\(x\times\frac{2}{5}=\frac{6}{5}\)

\(x=\frac{6}{5}:\frac{2}{5}\)

\(x=3\)

x + 3,75 + 4x = 24,25

x + 4x = 24,25 - 3,75

x * 5 = 20,5

x = 20,5 : 5

x= 4,1

Answer 2

x - 58 : 2 = 17

x - 29 = 17

x = 17 + 29

x = 46

( x - 58 ) : 2 = 17

x - 58 = 17 x 2

x - 58 = 34

x = 34 + 58

x = 92

125 + ( 145 - x ) = 175

145 - x = 175 - 125

145 - x = 50

x = 145 - 50

x = 95

x.2/5=4/5:2/3

x.2/5=6/5

x=6/5:2/5

=3

x + 3,75 + 4x = 24,25

x + 4x = 24,25 - 3,75

x * 5 = 20,5

x = 20,5 : 5

x= 4,1