Respuesta:
A) 142 = 26+2x
142-26= 2x
116/2=x
58 =x
B) 2130 = 150+9x
1980 = 9x
1980/9=x
220 = x
C) 5x-20 = 50
5x = 50+20
5x = 70
x = 70/5
x = 14
D) 2x+7 = 19
2x= 19-7
2x=12
x= 12/6
x= 6
E) 9x+28 = 172
9x = 172-28
9x = 144
x = 144/9
x = 16
F) x/7-6 = 10
x/7= 10+6
x/7= 16
x = 16x7
x = 112
Explicación paso a paso:
Espero que te haya servido de ayuda :D
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Verified answer
Respuesta:
A) 142 = 26+2x
142-26= 2x
116/2=x
58 =x
B) 2130 = 150+9x
1980 = 9x
1980/9=x
220 = x
C) 5x-20 = 50
5x = 50+20
5x = 70
x = 70/5
x = 14
D) 2x+7 = 19
2x= 19-7
2x=12
x= 12/6
x= 6
E) 9x+28 = 172
9x = 172-28
9x = 144
x = 144/9
x = 16
F) x/7-6 = 10
x/7= 10+6
x/7= 16
x = 16x7
x = 112
Explicación paso a paso:
Espero que te haya servido de ayuda :D