Question

1)/x+7/=10. 2)/y-2/=5. 3)/y-1,7/=4. уровнение помогите​

Answer 1

Ответ:10-7=3

5.3+2=7.3

4+1.7=5.7

Пошаговое объяснение:

Answer 2

1. To solve the equation |x + 7| = 10, we need to consider two cases:

Case 1: (x + 7) = 10 If x + 7 = 10, we subtract 7 from both sides: x = 10 - 7 x = 3

Case 2: -(x + 7) = 10 If -(x + 7) = 10, we remove the negative sign by multiplying both sides by -1: x + 7 = -10 Subtracting 7 from both sides: x = -10 - 7 x = -17

Therefore, the solutions to the equation |x + 7| = 10 are x = 3 and x = -17.

2. To solve the equation |y - 2| = 5, we also have two cases:

Case 1: (y - 2) = 5 If y - 2 = 5, we add 2 to both sides: y = 5 + 2 y = 7

Case 2: -(y - 2) = 5 If -(y - 2) = 5, we remove the negative sign: y - 2 = -5 Adding 2 to both sides: y = -5 + 2 y = -3

Therefore, the solutions to the equation |y - 2| = 5 are y = 7 and y = -3.

3. To solve the equation |y - 1.7| = 4, we again consider two cases:

Case 1: (y - 1.7) = 4 If y - 1.7 = 4, we add 1.7 to both sides: y = 4 + 1.7 y = 5.7

Case 2: -(y - 1.7) = 4 If -(y - 1.7) = 4, we remove the negative sign: y - 1.7 = -4 Adding 1.7 to both sides: y = -4 + 1.7 y = -2.3

Therefore, the solutions to the equation |y - 1.7| = 4 are y = 5.7 and y = -2.3.