Explicación paso a paso:
a) 3(x + 5) = 5x + 11
3x + 15 = 5x + 11
15 - 11 = 5x - 3x
4 = 2x
4/2 = x
2 = x
_______________________________
b) 11 − 3x = 2(x + 3)
11 - 3x = 2x + 6
11 - 6 = 2x + 3x
5 = 5x
5/5 = x
1 = x
a)
3x+15 = 5x+11
3x-5x = 11-15
-2x = -4
x = 2
b)
11-3x = 2x+6
11-6 = 2x+3x
5x = 5
x = 1
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Explicación paso a paso:
a) 3(x + 5) = 5x + 11
3x + 15 = 5x + 11
15 - 11 = 5x - 3x
4 = 2x
4/2 = x
2 = x
_______________________________
b) 11 − 3x = 2(x + 3)
11 - 3x = 2x + 6
11 - 6 = 2x + 3x
5 = 5x
5/5 = x
1 = x
a)
3x+15 = 5x+11
3x-5x = 11-15
-2x = -4
x = 2
b)
11-3x = 2x+6
11-6 = 2x+3x
5x = 5
x = 1