Question

7,3 x X + 2,7 x X - X=405

Answer 1

X x 7,3 + X x 2,7 - X=405

X x 7,3 + X x 2,7- X x1=405

X x(7,3+2,7-1)=405

X x9=405

X=405:9

X=45

X x9   

Answer 2

\(7,3\times x+2,7\times x-x=405\)

\(x\times\left(7,3+2,7-1\right)=405\)

\(x\times9=405\)

\(x=405\div9\)

\(x=45\)

CHÚC BN HỌC TỐT NHA!!

Answer 3

7,3 x X + 2,7 x X - X x 1 = 405

X x (7,3 + 2,7 -1) = 405

X x 9 = 405

X = 405 :9

X = 45