Respuestas
Respuesta:
- x = 12
- z = 53
- m = 20
- x = -12.5
- c = -9
- Sin solución
- x = -14
- n = -46/3 = -15.333
Explicación paso a paso:
1.
-2x+11 = -13
-2x = -13-11
-2x = -24
x = -24/-2
x = 12
Comprobación:
-2*12 + 11 = -13
-24 + 11 = -13
2
(-5+z)/4 = 12
-5+z = 12*4
-5+z = 48
z = 48+5
z = 53
Comprobación:
(-5+53)/4 = 12
48/4 = 12
3
m/5 -14 = -10
m/5 = -10+14
m/5 = 4
m = 5*4
m = 20
Comprobación:
20/5 - 14 = -10
4 - 14 = -10
4
-3(2x+5) = 60
-3*2x + (-3*5) = 60
-6x - 15 = 60
-6x = 60+15
-6x = 75
x = 75 / -6
x = -12.5
Comprobación:
-3(2*-12.5 + 5) = 60
-3(-25+5) = 60
-3*-20 = 60
5
8c - 14 = 5c - 41
8c - 5c = 14 - 41
3c = -27
c = -27/-3
c = -9
Comprobación:
8*-9 - 14 = 5*-9 - 41
-72 - 14 = -45 - 41 = -86
6
7x + 9 = 7(4+x)
7x + 9 = 7*4 + 7*x
7x - 7x = 28 + 9
0 ≠ 37
Esta ecuación carece de solución
7
7x = 4x - 42
7x - 4x = -42
3x = -42
x = -42/3
x = -14
Comprobación:
7*-14 = 4*-14 - 42
-98 = -56 - 42
8
12n + 10 - 4n = 4n + n - 36
12n - 4n - 4n - n = -36 - 10
3n = -46
n = -46/3
n = -15.333
Comprobación:
12*-15.333 + 10 - 4*-15.333 =4*-15.33 +(-15.333) - 36
-184 + 10 + 61.333 = -61.333 - 15.333 - 36
-112.667 = -76.667 - 36