Question

Calcule o valor da letra em cada item. a +38=57 23×n=161 421-r=303 p÷12=6 s-98=124 210÷x=14

Answer 1

a +38=57 => a=57-38 => a=19
23×n=161 => n= 161÷23 => n=7
421-r=303 => 421-303=r =>r=118
p÷12=6 => p=12x6 =>p=72
s-98=124 =>.s=124+98=> s=222
210÷x=147 => x=147x210=> x=30870