(25+8) х=132
132 х=25+8
132х=34
х=132-34
х=88
Ответ:88
1) (х + 512) - 403 = 509 2) 803 - (352 + у) = 413
х + 512 = 509 + 403 352 + у = 803 - 413
х + 512 = 912 352 + у = 390
х = 912 - 512 у = 390 - 352
х = 400 у = 38
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3) (201 - х) + 633 = 750 4) 721 + 189 = (910 - b)
201 - х = 750 - 633 910 - b = 910
201 - х = 117 b = 910 - 910
х = 201 - 117 b = 0
х = 84
-2(x-9)=0
-2x+18=0
-2x=0-18
x= -2:(-18)
x=9
14:|-10+x|+4y = ? при x = 8 , y=-4
1) |-10 + x| = | -10 +8| = |-2| = 2
2) 14:2 +4*(-4) = 7 - 16 = -9
3) Ответ: -9