Question

Y= -2x + 1 Найдите значение x при y= 1;-1;2;-3

Answer 1

У= -2х + 2
для решения уравнения просто представляем значения у, получаем:
1=-2х+1
-1=-2х+1
2=-2х+1
-3=-2х+1
решаем их как простре уровнение:
1=-2х+1. -2х=9. х=0
-1=-2х+1. -2х=-2. х=1
2=-2х+1. -2х=1. х=-0,5
-3=-2х+1. -2х=-4. х=2
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Answer 2

1) -2х+1=1

-2х=1-1

-2х=0

х=0

2) -2х+1=-1

-2х=-1-1

-2х=-2

х=1

3) -2х+1=2

-2х=2-1

-2х=1

х=-1/2

4) -2х+1=-3

-2х=-3-1

-2х=-4

х=2

Answer 3

To find the corresponding values of x for different values of y in the equation Y = -2x + 1, we can substitute each given y into the equation and solve for x. Let's calculate it step by step for each value of y:

1. When y = 1: Y = -2x + 1 1 = -2x + 1 Subtract 1 from both sides: 0 = -2x Divide both sides by -2: x = 0

So, when y = 1, x = 0.

2. When y = -1: Y = -2x + 1 -1 = -2x + 1 Subtract 1 from both sides: -2 = -2x Divide both sides by -2: x = 1

So, when y = -1, x = 1.

3. When y = 2: Y = -2x + 1 2 = -2x + 1 Subtract 1 from both sides: 1 = -2x Divide both sides by -2: x = -1/2

So, when y = 2, x = -1/2.

4. When y = -3: Y = -2x + 1 -3 = -2x + 1 Subtract 1 from both sides: -4 = -2x Divide both sides by -2: x = 2

So, when y = -3, x = 2.

To summarize:

• When y = 1, x = 0
• When y = -1, x = 1
• When y = 2, x = -1/2
• When y = -3, x = 2