a. X – 9 = 2 b. X – 2 +7 = 5 -9 c. 2 – (5 – 11 ) = 6 + x d. 5 -9 = x -4 +1 e. 6( 6 -3x ) = 4x -8 f. ( x+2)÷4= 9 g. (1- 9x)÷5 = - 3x -7 h. 6 -2x = (x÷4) -3
Respuestas
Respuesta:
a. x-9=2
x= 11
b. X-2+7=5-9
x+5=-4
x= -9
c. 2 – (5 – 11 ) = 6 + x
6+x=2+6
6+x=8
x= 2
d. 5 -9 = x -4 +1
x-4+1=5-9
x-3=5-9
x-3=-4
x= -1
e. 6( 6 -3x ) = 4x -8
36-18x=4x-8
-18x=4x-8-36
-18x=4x-44
-22x=-44
x=2
f. ( x+2)÷4= 9
x+2= 9 . 4
x+2=36
x= 34
g. (1- 9x)÷5 = - 3x -7
1-9x=-15x-35
-9x=-15x-36
6x=-36
x= -6
h. 6 -2x = (x÷4) -3
-9x=-36
x= 4
espero y te sirva :')