Question

[hoang thiên quân]

1278 + X x 8 = 4878

Answer 1

[린 린]

1278 + X x 8 = 4878

X x 8 = 4878-1278

X x 8 = 3600

x=450

Answer 2

[Huỳnh Quang Sang]

\(1278+x\times8=4878\)

\(\Rightarrow x\times8=4878-1278\)

\(\Rightarrow x\times8=3600\)

\(\Rightarrow x=3600:8\)

\(\Rightarrow x=450\)

Vậy x = 450