ayuda es mi última tarea del semestre ayuden porfavor no quiero fallarlo
Respuestas a la pregunta
Explicación paso a paso:
1. x+17 = 215
x = 215 - 17
x = 198
2. 2x = 242
x = 242/2
x = 121
3. 7x - 15 = 2x + 65
7x - 2x = 65 + 15
5x = 80
x= 80/5
x = 16
4. x + 45 = 55
x = 55+45
x = 100
5. 7x = 896
x = 896/7
x = 128
6. 15x + 10 = 2x + 127
15x - 2x = 127 - 10
13x = 117
x = 117/13
x = 9
7. x - 29 = 400
x = 400 - 29
x = 381
8. x/13 = 12
x = 12*13
x = 156
9. 14x - 11 = 3x + 77
14x - 3x = 77 + 11
11x = 88
x = 88/11
x = 8
10. x - 115 = 520
x = 520 + 115
x = 635
11. x/7 = 127
x = 127*7
x = 889
12. 9x - 5 = 5x + 55
9x - 5x = 55 + 5
4x = 60
x = 60/4
x = 15
13. 3x + 11 = 2x - 3
3x - 2x = -3 - 11
x= -14
14. 5x - 42 = 3x + 48
5x - 3x = 48 + 42
2x = 90
x = 90/2
x = 45
15. 28x + 30 = 20x - 50
28x - 20x = -50 - 30
8x = -80
x = -80/8
x = -10