152+19x=2052:12
152+19x=171
19x=171-152
19x=19
x=19:19
x=1
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152+19x=2052:12
152+19x=171
19x=171-152
19x=19
x=19:19
x=1
1824-228х=2052
-228х=2052-1824
-228х=228
х=-1