silviamgarcia
03.08.2019 •
Mathematics
What is the solution to the equation 3c/5– 1/2 = – 31/2? a. – 25 b. – 5 c. – 3 d. 5 e. 25
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Ответ:
+1/2 +1/2
3c/5=-30/2 Then simplify the fraction
(5)3c/5=-15(5) Multiply 5 both sides
3c=75 Finally, divide by 3 both sides
c=25
So the answer to your question is E.
Ответ:
-4 * -2/5
-4/1 * -2/5 = 8/5
-4 * 3x = -12x
-4(-2/5 + 3x) = -12x + 8/5
-12x + 8/5