Question

1,9×-3,6=×-10,8 qual a respostas

5×+10-6×+2=13

Answer 1

1,9X - 3,6 = X - 10,8
1,9X - 1X = -10,8 + 3,6
0,9X = - 7,2
X = -7,2 / 0,9
X = - 8

5X + 10 - 6X + 2 = 13
-X +12 = 13
- X = 13 - 12
- X = 1
X = -1

Answer 2

5x+10-6x+2=13
5x-6x=13-10-2
-x=1(-1)
x=1

1,9x-3,6=x-10,8
1,9x-x=10,8+3,6
0.9x=14.4
x=14.4/0.9
x=1.6