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30.11.2019 •
Mathematics
Math people 25 points to answer this m
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Ответ:
Step-by-step explanation:
1d
2c
3a
4c
6 4=110(alt exter) 3=70(Suppl of 4) 1=70(vertical with 3)
7 x=3
8x+8=32
8x=24
x=3
8
42=8x-14
56=8x
x=7
42=56-14
Ответ:
Good evening ,
Subtract 3x on both sides
Step-by-step explanation:
3x−5=7x+11 ⇔ (-3x)+3x−5=+(-3x)+7x+11 ⇔ −5=4x+11 ⇔ -16=4x ⇔ -4=x.
:)