Ответ:
17x-34= -170
17x= -170+34
17x= -136
x= -136:17
x = -8
7x+5=9x-11
11+5=9x-7x
16=2x
x=8
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Ответ:
17x-34= -170
17x= -170+34
17x= -136
x= -136:17
x = -8
7x+5=9x-11
11+5=9x-7x
16=2x
x=8