Explicación paso a paso:
3x - 8 = -3x + 10
3x + 3x = 10 + 8
6x = 18
x = 18/6
x = 3
comprobación:
3(3) - 8 = -3(3) + 10
9 - 8 = -9 + 10
1 = 1
7x + 2 - 10 = 2x + 2
7x - 8 = 2x + 2
7x - 2x = 2 + 8
5x = 10
x = 10/5
x = 2
7(2) + 2 - 10 = 2(2) + 2
14 + 2 - 10 = 4 + 2
6 = 6
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Explicación paso a paso:
3x - 8 = -3x + 10
3x + 3x = 10 + 8
6x = 18
x = 18/6
x = 3
comprobación:
3(3) - 8 = -3(3) + 10
9 - 8 = -9 + 10
1 = 1
7x + 2 - 10 = 2x + 2
7x - 8 = 2x + 2
7x - 2x = 2 + 8
5x = 10
x = 10/5
x = 2
comprobación:
7(2) + 2 - 10 = 2(2) + 2
14 + 2 - 10 = 4 + 2
6 = 6