<span>1) (x+7,9):48-0,02=15,7
(х+7.9):48=15.7+0.02
(х+7.9):48= 15.72
х+7.9=15.72*48
х+7.9=754.56
х=754.56-7.9
х=746.66
2) (x-56,3):7-25,015=306,3
(х-56.3):7=306.3+25.015
(х-56.3):7=331.315
х-56.3=331.315*7
х-56.3=2319.205
х=2319.205+56.3
х=2375.505</span>
(x+7,9):48-0,02=15,7
(x+7,9):48= 15,7+0,02
(x+7,9):48=15,72
(x+7,9)= 15,72*48
x+7,9 = 754,56
х=754,56-7,9=746,66
(x-56,3):7-25,015=306,3
(x-56,3):7 = 306,3+25,015
(x-56,3):7=331,315
x-56,3 = 331,315*7=2319,205
х=2319,205+56.3=2375,505