27. Реши уравнения: в тетради!!!!!! 500+ X=800 - 122 X+ 320=900-247 411 + X= 700-125 25+X=600-399 321 + 122 = X +35 521 +237=X+121 422 +299 = X +324 521 + 309 =X+127 600 X = 221 + 125 800-X=327 + 199 900-X = 488 +296 500-X = 199 +137 X-300 = 900 - 567 X-211= 500 - 149 X-129= 600 - 297 X-578= 900 - 654
пж помогите даю 40 б​
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