Объяснение:
1) 40×(4x-8) + 15(3x+1) = 24(18x-15) - 1080
160x-320+45x+15 = 432x-360-1080
205x - 432x = -1440 + 305
-227x = -1135
x = 5
2) (x-5)×(2-2) = 0
(x-5)×0 = 0
0=0
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Объяснение:
1) 40×(4x-8) + 15(3x+1) = 24(18x-15) - 1080
160x-320+45x+15 = 432x-360-1080
205x - 432x = -1440 + 305
-227x = -1135
x = 5
2) (x-5)×(2-2) = 0
(x-5)×0 = 0
0=0