Ayuda por favor les doy puntos
-3x + 7 = 28
4x – 37 = -25
3x – 10 = - 5x + 30 (se agrupan las x)
(5 – 4x) / 8 = 40
6x – 20 = -74
(4 + 2x) / -5 = -100
8x + 3 – 5 = -28
(8 + 2x) / 10 = -60
3x + 10 – 3 = - 14
10x + 6 = -24
Respuestas
Respuesta:
1) -3x + 7 = 28
-3x = 28-7
-3x = 21
-x = 21/3
-x = 7
2) 4x – 37 = -25
4x = -25+37
4x = 12
x = 12/4
x = 3
3) 3x – 10 = -5x + 30
3x + 5x = 30 + 10
8x = 40
x = 40/8
x = 5
5) 6x – 20 = -74
6x = -74 + 20
6x = -54
x = -54/ 6
x = -9
7) 8x + 3 – 5 = -28
8x - 2 = -28
8x = -28 + 2
8x = -26
x = -26/8
x = -3.25
9) 3x + 10 – 3 = - 14
3x + 7 = -14
3x = -14-7
3x = -21
x = -21/3
x = -7
10) 10x + 6 = -24
10x = -24-6
10x = -30
x = -30/10
x = -3
La 4, 6 y 8 no entendí xd Espero q te ayude:D