Answer:
Explanation:
a)
Planteamiento:
2x - 6 = 4
Procedimiento:
2x - 6 + 6 = 4 + 6
2x + 0 = 10
2x = 10
2x/2 = 10/2
1x = 5
x = 5
Comprobación:
2*5 - 6 = 4
10 - 6 = 4
Solución:
b)
3x - 3 = 3
3x - 3 + 3 = 3 + 3
3x - 0 = 6
3x = 6
3x/3 = 6/3
1x = 2
x = 2
3*2 - 3 = 3
6 -3 = 3
c
x + 3 = 4
x + 3 - 3 = 4 -3
x + 0 = 1
x = 1
1 + 3 = 4
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