desarrollar las ecuaciones CON EL PROCEDIMIENTO x FA
1. x – 4 = 12
2. 9x – 4 = 14
3. 3x = – 4
4. –2x = –14
5. 11x + 9 = −5x + 1216. 11x − 3 = −9x + 37
7. 3x + 7 = −4x – 21
8. −7x − 5 = 10x + 80
9. −3x + 9 = 2x – 26
10. 9x – 2 = 4 – 2
Respuestas a la pregunta
1.
x = 12 + 4
x = 16
2.
9x = 14 + 4
9x = 18
x = 18/9
x = 2
3.
x = - 4/3
4.
(-) -2x = - 14
2x = 14
x = 14/2
x = 7
5.
11x + 5x = 121 - 9
16x = 112
x = 112/16
x = 7
6.
11x + 9x = 37 + 3
20x = 40
x = 40/20
x = 2
7.
3x + 4x = - 21 - 7
7x = - 28
x = - 28/7
x = - 4
8.
-7x - 10x = 80 + 5
(-) -17x = 85
x = -85/17
x = - 5
9.
-3x - 2x = - 26 - 9
(-) -5x = -35
x = 35/5
x = 7
10.
9x = 4 - 2 + 2
9x = 4
x = 4/9
Espero haberte ayudado. Suerte en los estudios ≧◠◡◠≦.
RESPUESTA :
1. 16
2. 2
3. -4/3
4. 7
7. -4
8. -5
9. 7
10. 4/9
Explicación paso a paso:
1 )x - 4 = 12
x= 12 + 4
x= 16
2) 9x - 4 = 14
9x = 14 + 4
9x = 18
x= 18 ÷ 9
x=2
3)
3x = - 4
3x ÷ 3 = -4 ÷ 3
x = -4 ÷ 3
x= -4/3
4)
-2x = -14
x = -14 ÷ -2
x = 7
7)
3x+7 = -4x - 21
3x + 4x + 7 = -21
3x + 4x = -21 - 7
7x = -28
x = -28 ÷ 7
x = -4
8)
-7x - 5 = 10x + 80
-7x - 10x - 5 = 80
-7x - 10x = 80 + 5
-17x = 85
x = 85 ÷ -17
x = -5
9)
-3× + 9 = 2x - 26
-3x - 2x + 9 = -26
-3x-2x = -26 - 9
-5x = -35
x = -35 ÷ 5
x = 7
10) 9x - 2 = 4 - 2
9x - 2 = 2
9x = 2 + 2
9x = 4
x = 4/9
