Respuesta:
1- x + 120 = 230
x = 230 - 120
x = 110
2- 127 + y = 540 - 123
127 + y = 417
y = 417 - 127
y = 290
3- 420 = z + 25
420 - 25 =z
395 =z
4- 85 + x - 34 = 60
85 + x= 60 +34
85 +x = 94
x= 94-85
x=8
5- 96 - y =42
96-42= y
54=y
6- 100 - y = 78
100 - 78 = y
22 = y
7- 125 + 34 = 256 - a
125+34-256= - a
159-256= - a
-97 = - a
97 = a
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Verified answer
Respuesta:
1- x + 120 = 230
x = 230 - 120
x = 110
2- 127 + y = 540 - 123
127 + y = 417
y = 417 - 127
y = 290
3- 420 = z + 25
420 - 25 =z
395 =z
4- 85 + x - 34 = 60
85 + x= 60 +34
85 +x = 94
x= 94-85
x=8
5- 96 - y =42
96-42= y
54=y
6- 100 - y = 78
100 - 78 = y
22 = y
7- 125 + 34 = 256 - a
125+34-256= - a
159-256= - a
-97 = - a
97 = a