Respuesta :

Space

Answer:

x = 198

Step-by-step explanation:

To find our unknown number, we simply use algebra:

x + 400 = 598

Subtract both sides by 400

x = 198

Answer:

To fill in the blank just subtract

[tex]598-400=198[/tex]

To check add 198 and 400

[tex]400+198=598[/tex]

So, the answer is 198

Hope this helps

(ノ´ヮ`)ノ*: ・゚