Question

realize os calculos necessários


a) 6-2X=2

b)X+15=2X-3

c)3X-1=14

d)10-4X=X



ME AJUDEM PLS,OBRIGADA.

Answer 1

a) 6-2X=2
- 2X = 2 - 6
- 2X = - 4 (-1)
X = 4 / 2
X = 2





b)X+15=2X-3
X - 2X = - 3 - 15
- X = - 18 (-1)
X = 18






c)3X-1=14
3X = 14 + 1
3X = 15
X = 15/3
X = 5




d)10-4X=X
-4X - X = -10
-5X = - 10 (-1)
X = 10/5
X = 2