10:(×—1)=5. 15:(×+2)—1=2. 10—16:×=6

Question

10:(×—1)=5. 15:(×+2)—1=2. 10—16:×=6

Answer 1

1)10/(X - 1) = 5.
10 = 5X - 5
5X = 15
X = 3
2)15/(X + 2) - 1 = 2
15/(X + 2) = 3
15 = 3X + 6
3X = 9
X = 3
3)10 - 16/X = 6
4 = 16/X
X = 4.

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Answer 2

10:(×-1)=5
×-1=10:5
×-1=2
×=1+2
×=3

15:(×+2)-1=2
15:(×+2)=1+2
15:(×+2)=3
×+2=15:3
×+2=5
×=5-2
×=3

10-(16÷×)=6
16:×=10-6
16:×=4
×=16:4
×=4

Comments

Спасибо