htiffany0225
17.01.2020 •
Mathematics
Is (2,2) a solution to x+y=4 and 5x+5y=20
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Ответ:
yes
Step-by-step explanation:
2+2=4
5(2)+5(2)=
10+10=
20
Ответ:
if (for example) M = 10 and N = 5,
10-5=5
10+(-5)=5