Question

84a+25a+7=443!!Помогите Плиз плиз!срочно!

Answer 1

$84a + 25a + 7 = 443 \ \ 109a + 7 = 443 \ \ 109a = 443 - 7 \ \ 109a = 436 \ \ a = 436 div 109 \ \ a = 4$

Answer 2

84а+25а +7=443

109а + 7=443

109а= 443 -7

109а = 436

а= 436/109

а=4