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2014-09-22T01:01:20+03:00
A = b - 18
2a + b = 873
2 * (b - 18) + b = 873
2b - 36 + b = 873
3b = 909
b = 909 : 3
b = 303
a = 303 - 18
a = 285
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  • Utilizator Brainly
2014-09-22T01:12:52+03:00
A=b+18
2a+b=873=>2*(b+18)+b=873=>2b+36+b=873=>3b=801

b=801:3
b=267

a=b+18
a=267+18
a=285

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