Question

A)(x-5,46)×2=9б)(y+0,5):2=1, 57

Answer 1

А)

(х-5,46)×2=9

х-5,46=9÷2

х-5,46=4,5

х=9,96

б)

(у+0,5)÷2=1,57

у+0,5=1,57×2

у+0,5=3,14

у=3,14-0,5

у=2,64

Answer 2

A)x-5,46=4,5

x=9,96

Б)y+0,5=3,14

y=2,64

Answer 3

To solve the equations, let's first interpret them and then find the values of 'x' and 'y'.

a) (x - 5) × 2 = 9

Step 1: Distribute the 2 on the left side of the equation. 2x - 10 = 9

Step 2: Move the constant term to the right side by adding 10 to both sides. 2x = 9 + 10 2x = 19

Step 3: Isolate 'x' by dividing both sides by 2. x = 19 / 2 x = 9.5

So, the value of 'x' is 9.5.

b) (y + 0.5) / 2 = 1.57

Step 1: Multiply both sides by 2 to eliminate the fraction. y + 0.5 = 2 * 1.57 y + 0.5 = 3.14

Step 2: Move the constant term to the right side by subtracting 0.5 from both sides. y = 3.14 - 0.5 y = 2.64

So, the value of 'y' is 2.64.

Therefore, the solutions to the given equations are: a) x = 9.5 b) y = 2.64