Question

descubra o valor de x com cálculos ajuda por favor

Answer 1

1)x+5=8
    x=8-5
    x=3



2)x+6=10
   x=10-6
   x=4


3)x+13=54
  x=54-13
   x=41


4)x+27=42
   x=42-27
   x=15


5)x+10=21
   x=21-10
   x=11


6)x+12=78
  x=78-12
  x=66


7)x-1=7
  x=7+1
  x=8



9)x-3=15
  x=15+3
  x=18


10)x-19=12
    x=19+12
    x=31

Answer 2

1. x=8-5 
x=3

2. x+6=10
x=10-6
x=4

3. x+13=54
x=54-13
x=41

4. x+27=42
x=42-27
x=15

5. x+10=21
x=21-10
x=11

6. x+12=78
x=78-12
66

7.x-1=7
x=7-1
x=6

8. x-4=9
x=9-4
x=5

9. x-3=15
x=15-3
x=12

10. x-19=12
x=12-19
x=-7