Question

calcule o valor de x

A)x+4=1
6

B)3x=9
4
C)2x=-10


D)x-5=1
7

E)3x+1=4
5

F) 4x+3=-1
5

pfv me ajude

Answer 1

A)x+4=1 => x + 1 = 6.1 ==. x = 6 - 1 ==> x = 5
      6
========================================================
B)3x=9 ==> 3x = 4.9 ==> 3x = 36 ==> x = 12
     4
===================================================
C) 2x=-10 ==. x = - 5


D)x-5=1 ==> x - 5 = 7.1 ==> x - 5 = 7 ==> x = 7+5 ==. x = 12
     7

E)3x+1=4 ==> 3x + 1 = 5.4 ==> 3x = 20 - 1 ==> 3x = 19 ==> x = 19/3
      5

F) 4x+3=-1 ==> 4x + 3 = 5(-1) ==. 4x = - 5 - 3 ==> 4x = - 8 ==> x = - 2
        5