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STIIND CA 3X+6Y+19=43 DETERMINATI 6Y+38+3X?


Răspuns :

3X+6Y+19=43 (=)3X+6Y=43-19(=)3X+6Y=24(=)3X+6Y+38=24+38(=)3X+6Y+38=62
3(x + 2y) = 43 - 19
3(x + 2y) = 24
x + 2y = 24 : 3
x + 2y = 8
3(x + 2y) + 38 = 3 * 8 + 38 = 24 + 38 = 62