Question

descubra a incognita a) 2c-5=20-3c b)3X+4=10 c)4n=2n+1 d)5t=-6-1t

Answer 1

a) 2c-5=20-3c

2c +3c = 20 +5

      5c = 25

        c = $\frac{25}{5}$

         c = 5

b)3X+4=10

3x = 10 -4

3x = 6

 x = $\frac{6}{3}$

 x = 2

c)4n=2n+1

4n -2n = 1

    2n = 1  

   n = $\frac{2}{1}$

   n = 2

d)5t=-6-1t

5t + 1t = -6

  6t = -6

    t = $\frac{6}{-6}$

   t = -1

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