Question

1) (x+25):7−8=3
2)(105−x):4+13=35
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Answer 1

(Х+25):7-8=3
Х+25:7=8+3
Х+25:7=11
Х+25=7•11
Х+25=77
Х=77-25
Х=52
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(105-Х):4+13=35
(105-Х):4=35-13
(105-Х):4=22
105-Х=22•4
105-Х=88
Х=105-88
Х=17