Question

calcule o valor de X:
1) X+5=8
2) X+6=14
3) X+17=51
4) X+27=42
5) X- 1=7
6) X - 4=9
7) X-18=54
8) X- 37=13
URGENTE

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Answer 1

Explicação passo-a-passo:

1) x+5=8

x=8-5

x=3

2) x+6=14

x=14-6

x=8

3) x+17=51

x=51-17

x=34

4) x+27=42

x=42-27

x=15

5) x-1=7

x=7+1

x=8

6) x-4=9

x=9+4

x=13

7)x-18=54

x=54+18

x=72

8) x-37=13

x=13+37

x=50

nota bem : quando mudamos de membro mudamos de sinal.