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Mathematics
24 April, 17:05
4x-10=30
2n-7=30
S/3+2=4
+1
Answers (
1
)
Arjun Jackson
24 April, 17:15
0
x=10 n=18.5 s=6
Step-by-step explanation:
4x-10=30
Add 10 to both sides
4x-10+10=30+10
4x=40
Divide by 4 on both sides
(4x) / 4=40/4
x=10
2n-7=30
Add 7 to both sides
2n-7+7=30+7
2n=37
Divide by 2 on both sides
(2n) / 2=37/2
n=18.5
(s/3) + 2=4
Subtract 2 from both sides
(s/3) + 2-2=4-2
(s/3) = 2
Multiply by 3 on both sides
3s/3=2*3
s=6
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