Question

Tim y biet 55-2×y+33=76

 

Answer 1

tìm y hả bạn

Answer 2

\(55-2y+33=76\)

\(\left(55+33\right)-2y=76\)

\(88-2y=76\)

\(2y=88-76\)

\(2y=12\)

\(y=6\)

Answer 3

\(55-2\cdot y+33=76\)

\(55-2\cdot y=76-33\)

\(55-2\cdot y=43\)

            \(2\cdot y=55-43\)

            \(2\cdot y=12\)

                 \(y=12\text{ : }2\)

                \(y=6\)

Answer 4

55 - 2 × y + 33 = 76 

<=> 55 - 2 × y = 76 - 33

<=> 55 - 2 × y = 43 

<=> 2 × y = 55 - 43 

<=> 2 × y = 12 

<=> y = 12 : 2 

<=> y = 6 

Vậy y = 6