Ответ №1
2x +7 = x + 5.5 2x -x = 5/5-7 x = - 1.5
9.5x +2 =5.7 x -5.6 9.5x -5.7x =-5.6 - 2 3.8x = -7.6 x = -2
2.9 +7.4 = x +1.7 10.3 = x + 1.7 -x = 1.7- 10.3 x = 8.6
Ответ №1
2x +7 = x + 5.5 2x -x = 5/5-7 x = - 1.5
9.5x +2 =5.7 x -5.6 9.5x -5.7x =-5.6 - 2 3.8x = -7.6 x = -2
2.9 +7.4 = x +1.7 10.3 = x + 1.7 -x = 1.7- 10.3 x = 8.6
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