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a fost răspuns

7 Ecuatii simple EXEMPLU 2 • x - 3 = 7 Va rog dau coroana

Răspuns :

Gandac
2×X-3=7
2X=10
X=10÷2
X=5

5×X+20=100
5X=100-20
5X=80
X=80÷5
X=16

6×X-3=21
6X=21+3
6X=24
X=24÷6
X=4

7×X-5=37
7X=37+5
7X=42
X=42÷7
X=6

4×X+4=20
4X=20-4
X=16÷4
X=4

7×X-5=9
7X=9+5
7X=14
X=14÷7
X=2

8×X-6=10
8X=10+6
8X=16
X=16÷8
X=2

9×X-10=8
9X=8+10
9X=18
X=18÷9
X=2

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