5/2x + 3 = 21/2 # find the equation
Answers
Answered by
1
Answer:
x = 3
Step-by-step explanation:
(5)/(2)*x+3=(21)/(2)
(5x)/(2)+3=(21)/(2)
(5x)/(2)=-3+(21)/(2)
(5x)/(2)=(15)/(2)
(5x)/(2)*2=(15)/(2)*2
5x=(15)/(2)*2
5x=15
(5x)/(5)=(15)/(5)
x=(15)/(5)
x=3
Answered by
1
Answer:
1/3
Step-by-step explanation:
5/2x + 3 = 21/2
(5+6x)/2x = 21/2
2(5+6x) = 2x(21)
10+12x = 42x
30x = 10
x = 10/30 = 1/3
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