2 years ago

Please help

Mathematics

2 answers:

bezimeni [28]2 years ago

5 0

Answer:

26-4s=9s

26-(4s-9s)=0

26+5s=0

5s=-26

ans: s= -26/5

-3r+10=15r-8

-3r-15r=-8-10

-18r=-18

18r=18

ans: r=1

-9(t-2)=4(t-15)

-9t+18=4t-60

-9t-4t=-60-18

-13t=-78

13t=78

ans: t=26

THERE U GO! :D

butalik [34]2 years ago

5 0

Step-by-step explanation:

26-4s=9s
26=9s+4s
26=13s
s=26/13
s=2

-3r+10=15r-8
-3r-15r=-8-10
-18r=-18
r=-18/-18
r=1

-9(t-2)=4(t-15)
-9t+18=4t-60
-9t-4t=-60-18
-13t=-78
t=-78/-13
t=6

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