х+408=312+501
х+408=813
х=813-408
х=405
405+408>312
813>312
813-312=501
700-398=у+45
302=у+45
у=302-45
у= 257
700> 257+45
700>302
700-302=398
)))
1)х+408-501=312
х=312-408+501
405+408-501=312
2)45+y+398=700
y=700-45-398
y=257
45+257+398=700
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Answers & Comments
Verified answer
х+408=312+501
х+408=813
х=813-408
х=405
405+408>312
813>312
813-312=501
700-398=у+45
302=у+45
у=302-45
у= 257
700> 257+45
700>302
700-302=398
)))
Verified answer
1)х+408-501=312
х=312-408+501
х=405
405+408-501=312
2)45+y+398=700
y=700-45-398
y=257
45+257+398=700