1)
165,64 - (a - 12.5) = 160,54
165.64-а+12.5=160.54
176.14-а=160.54
а=176.14-160.54
а=17.6
165.64-(17.6-12.5)=160.54
2)
278.74 - (6,5 - b) = 276,84
278.74-6.5+б=276.84
272.24+б=276.84
б=276.84-272.24
б=4.6
278.74-(6.5-4.6)=276.84
1)
165,64 - (a - 12.5) = 160,54
165.64-а+12.5=160.54
176.14-а=160.54
а=176.14-160.54
а=17.6
165.64-(17.6-12.5)=160.54
2)
278.74 - (6,5 - b) = 276,84
278.74-6.5+б=276.84
272.24+б=276.84
б=276.84-272.24
б=4.6
278.74-(6.5-4.6)=276.84