Question

(154x 2.5 +0.5) - ? = 192.5

find? ​

Answer 1

let the not given number be x

(152*2.5+0.5)-x=192.5

380.5-x=192.5

-x=192.5-380.5

-x= -188

-(-x)= -(-188)

x=188

check

152*2.5+0.5-(188)=192.5

380.5-188=192.5

192.5=192.5

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