4. Умножаем первое на 3, а второе на 4:
6х-15-12х-8=0
-6х=23
х=
5. По действиям:
1) 4,15+3,64-4,38-0,41=3
2)
3)
4) 2*9*0,5=9
5) 36:9=4
Ответ:4
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Answers & Comments
6х-15=12х+8
6х-12х=8+15
-6х=23
Х=-23/6
4. Умножаем первое на 3, а второе на 4:
6х-15-12х-8=0
-6х=23
х=
5. По действиям:
1) 4,15+3,64-4,38-0,41=3
2)
3)
4) 2*9*0,5=9
5) 36:9=4
Ответ:4