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rezolvati ecuatile
4x-15=60

2x-17=13

14x-5=79


Răspuns :

4x - 15 = 60
4x = 15 + 60
x = 75 : 4
x = 75/4 = 18,75
2x - 17 = 13
2x = 17 + 13
x = 30 : 2
x = 15
14x - 5 = 79
14x = 79 + 5
x = 84 : 14
x = 6
4x-15=60
4x=60+15
4x=75 /:4
x=[tex] \frac{75}{4} [/tex]
x=18,74

2x-17=13
2x=13+17
2x=30 /:2
x=15

14x-5=79
14x=79+5
14x=84 /:14
x=6