7х+13.48=97.9 57.3-11х=18.14 17.6: х-2.27=1.73 (х-8.59)*6=17.49 (х+2.67): 7=0.86 (5х-23.8): 2=37.6 х+х+х+х=5.46
156
497
Ответы на вопрос:
7х + 13.48 = 97.9
7х = 97.9 - 13.487х = 84.42х = 84.42 : 7 х = 12.06ответ: х = 12.0657.3 - 11х = 18.14- 11х = 18.14 - 57.3- 11х = - 39.16х = - 39.16 : ( - 11)х = 3.56ответ: 3.56 17.6 : х - 2.27 = 1.73
17.6 : х = 1.73 + 2.2717.6 : х = 4х = 17.6 : 4х = 4.4ответ: х = 4.4
(х - 8.59) * 6 = 17.496х - 51.54 = 17.496х = 17.49 + 51.546х = 69.03
х = 69.03 : 6х = 11.505ответ: 11.505(х + 2.67) : 7 = 0.86х + 2.67 = 0.86 * 7
х + 2.67 = 6.02х = 6.02 - 2.67х = 3.35ответ: х = 3.35(5х - 23.8) : 2 = 37.6
5х - 23.8 = 37.6 * 25х - 23.8 = 75.25х = 75.2 + 23.85х = 99х = 99 : 5х = 19.8ответ: х = 19.8х + х + х + х = 5.464х = 5.46х = 5.46 : 4х = 1.365ответ: 1.365
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