Question

calcule o valor de x a)x-1=7 b)x-4=9 C)x-3=15 d)x-19=12 e)x-18=54 f)x-37=13 g)8-x=7 h)10-x=3
i)30-x=14 por favor me ajuda

Answer 1

Calcule o valor de x

BASTA isolar o (x))

 a)x-1=7

x - 1 = 7
x = 7 + 1
x = 8

 b)x-4=9

x - 4 = 9
x = 9 + 4
x = 13


C)x-3=15

x - 3 = 15
x = 15 + 3
x = 18

d)x-19=12

x - 19 = 12
x = 12 + 19
x = 31


 e)x-18=54

x - 18 = 54
x = 54 + 18
x =  72

 f)x-37=13

x - 37 = 13
x = 13 + 37
x = 50

 g)8-x=7

8 - x = 7
- x = 7 - 8
- x = - 1
x = (-)(-)1
x = + 1

 h)10-x=3

10 -x = 3
-x = 3 - 10
-x = - 7
x = (-)(-)7
x = + 7

Answer 2

A) x=7+1=8
B) x=9+4=13
C) x=15+3=18
D) x=12+19=31
E) x=54+18=72
F) x=13+37=50
G) x=8+7=15
H) x=10+3=13
I) x=30+14=44