Question

45 x x + 55 x x = 987 giúp mình nha mn

Answer 1

xX(55+45)=987

x X 100=987

x =987:100

x=9,87

 

Answer 2

\(45\times x+55\times x=987\)

\(x\times\left(45+55\right)=987\)

\(x\times100=987\)

\(x=987:100\)

\(x=9,87\)

Answer 3

\(45.x+55.x=987\)

\(x\left(45+55\right)=987\)

\(x.100=987\)

\(x=987:100\)

\(x=9,87\)

Answer 4

45 x \(x\) + \(x\) x 55 = 987

\(x\) x ( 45 + 55 ) = 987

\(x\) x 100 = 987

        \(x\) = 987 : 100

        \(x\) = 9,87