Respuesta:
1) 2x + 5 = 9
2x = 9 - 5
2x = 4
2) 3x + 7 = 2x - 4
3x - 2x = - 4 - 7
x = -11
3) 5x - 9 = 3x + 6
5x - 3x = 6 + 9
2x = 15
x = 15/2
4) 2x - 5 = 3x + 4
2x - 3x = 4 + 5
-x = 9
x = -9
5) 5x - 1 = 7x - 4
5x - 7x = - 4 + 1
-2x = - 3
x = 3/2
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Verified answer
Respuesta:
1) 2x + 5 = 9
2x = 9 - 5
2x = 4
2) 3x + 7 = 2x - 4
3x - 2x = - 4 - 7
x = -11
3) 5x - 9 = 3x + 6
5x - 3x = 6 + 9
2x = 15
x = 15/2
4) 2x - 5 = 3x + 4
2x - 3x = 4 + 5
-x = 9
x = -9
5) 5x - 1 = 7x - 4
5x - 7x = - 4 + 1
-2x = - 3
x = 3/2