Respuesta:
a) x + 120 = 254
x = 254 - 120
x = 134
b) 3x - 28 = 80
3x = 80 + 28
3x = 108
x = 108/3
x = 36
c) 7x - 116 = 500
7x = 500 + 116
7x = 616
x = 616/7
x = 88
d) x + 8 = 144
x = 144 - 8
x = 136
e) 8x - 73 = 1143
8x = 1143 + 73
8x = 1.216/8
x = 152
f) 2x + 35 = 251
2x = 251 - 35
2x = 216
x = 108
g) x + 12 = 21
x = 21 - 12
x = 9
f) x = 108
d) x = 136
c) x = 88
e) x = 152
b) x = 36
a) x = 134
g) x = 9
_______________________________________________________
a) x + 8 = -18
x = -18 - 8
x = -26
b) w + (-3) = -22
w = -22 - (-3)
w = -22 + 3
w = -19
h) -36 = 4x
-36/4 = x
-9 = x
i) 45 = -m - 50
45 + m = -50
m = -50 - 45
m = -95
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Respuesta:
Columna A
a) x + 120 = 254
x = 254 - 120
x = 134
b) 3x - 28 = 80
3x = 80 + 28
3x = 108
x = 108/3
x = 36
c) 7x - 116 = 500
7x = 500 + 116
7x = 616
x = 616/7
x = 88
d) x + 8 = 144
x = 144 - 8
x = 136
e) 8x - 73 = 1143
8x = 1143 + 73
8x = 1.216/8
x = 152
f) 2x + 35 = 251
2x = 251 - 35
2x = 216
x = 108
g) x + 12 = 21
x = 21 - 12
x = 9
Columna B
f) x = 108
d) x = 136
c) x = 88
e) x = 152
b) x = 36
a) x = 134
g) x = 9
_______________________________________________________
a) x + 8 = -18
x = -18 - 8
x = -26
b) w + (-3) = -22
w = -22 - (-3)
w = -22 + 3
w = -19
h) -36 = 4x
-36/4 = x
-9 = x
i) 45 = -m - 50
45 + m = -50
m = -50 - 45
m = -95