nathanstern21
30.10.2019 •
Mathematics
Ihave some answers the these problems but i just wanna make sure there right.. ? ?
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Ответ:
8x+12=180
Subtract 12 from both sides
8x= 168
=c=21
10x-40=50
Add 40 to both sides
10x=90
X=9
4x+72+2x-12=180
6x +60 =180
Subtract 60 from both sides
6x=120
X=20
Ответ: