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asiaboo0
18.03.2021 •
Mathematics
-2y + 4 > 10
solve the inequality
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Ответ:
y<-3
Step-by-step explanation:
-2y+4>10
our objective is to isolate the variable
step 1 subtract each side by 4
4-4 cancels out
10-4=6
we now have
-2y>6
step 2 divide each side by -2
-2/-2 cancels out
6/-2=-3
IMPORTANT: when you divide by a negative number the inequality sign flips
So the final answer would be y<-3
Ответ:
Step-by-step explanation:
-2y+4>10
subtract 4 from both sides
-2y+4-4>10-4
-2y>6
divide both sides by two
-2/2y>6/2
-1y>3
if negative y is greater than three than you have to multiply both sides of the equation by -1
y>-3 if you put that back into the earlier equation it is impossible.
so we have to switch the signs to < or less than
y<-3
Hope that helps:)
Ответ: