Hola,
Aquí te van:
3x + 25 = 187
3x = 187 - 25
3x = 162
x = 162/3
x = 54
5x = 285
x = 285/5
x = 57
7x - 12 = 121
7x = 121 + 12
7x = 133
x = 133/7
x = 19
8x + 37 - 2x = 112
6x + 37 = 112
6x = 112 - 37
6x = 75
x = 75/6
x = 25/2
Saludos y suerte.
Respuesta:
1) 3X+25=187
3X=187-25
3X=162
X=162÷3
X=54
2) 5X=285
X=285÷5
X=57
3) 7X-12=121
7X=121+12
7X=133
X=133÷7
X=19
4) 8X+37-2X=112
8X-2X=112-37
6X=75
X=75÷6
X=25 ó X=12.5
2
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Hola,
Aquí te van:
3x + 25 = 187
3x = 187 - 25
3x = 162
x = 162/3
x = 54
5x = 285
x = 285/5
x = 57
7x - 12 = 121
7x = 121 + 12
7x = 133
x = 133/7
x = 19
8x + 37 - 2x = 112
6x + 37 = 112
6x = 112 - 37
6x = 75
x = 75/6
x = 25/2
Saludos y suerte.
Respuesta:
1) 3X+25=187
3X=187-25
3X=162
X=162÷3
X=54
2) 5X=285
X=285÷5
X=57
3) 7X-12=121
7X=121+12
7X=133
X=133÷7
X=19
4) 8X+37-2X=112
8X-2X=112-37
6X=75
X=75÷6
X=25 ó X=12.5
2