Question

x + 30 = 54 + 620

Answer 1

x + 30 = 54 + 620

x + 30 =    674

x         = 674 - 30

x         =     644

Answer 2

x+30=54+620

x+30=674

x=674-30

x=644

Answer 3

x + 30 = 54 + 620

x + 30 = 664

x = 664 - 30 

x = 634

Answer 4

\(x+30=54+620\)

\(x+30=674\)

           \(x=674-30\)

           \(x=644\)

Answer 5

x+30=54+620

x+30=674

     x=674-30=644 

Vay x=644

Answer 6

x+30=674

x=674-67

x=644

Answer 7

x+30=674

X=672-30

X=644

Answer 8

x+30=674

x=674-30

x=644

Answer 9

X + 30 = 54 + 620

X +30 = 674

X= 674 - 30

X = 645

Answer 10

x + 30 = 54 + 620

x + 30 = 674

x         =674-30

x         =644

Answer 11

x + 30 = 54 + 620

x + 30 = 674

x         = 674 - 30

x         = 644

vậy .......