Question

(y+0,45)×0,5=0,505(x-0,87)×0,7=0,707

Answer 1

$(y + 0.45) \times 0.5 = 0.505 \\ 0.5y + 0.225 = 0.505 \\ 0.5y = 0.505 - 0.225 \\ 0.5y = 0.28 \\ y = 0.56$

$(x - 0.87) \times 0.7 = 0.707 \\ 0.7x - 0.609 = 0.707 \\ 0.7x = 0.707 + 0.609 \\ 0.7x = 1.316 \\ x = 1.88$

Answer 2

To solve the equations:

1. (y + 0.45) × 0.5 = 0.505

   Distribute the 0.5 on the left side of the equation: 0.5y + 0.225 = 0.505

   Subtract 0.225 from both sides: 0.5y = 0.505 - 0.225

   Simplify the right side: 0.5y = 0.28

   Divide both sides by 0.5: y = 0.28 / 0.5

   Simplify: y = 0.56

   So, the value of y is 0.56.

2. (x - 0.87) × 0.7 = 0.707

   Distribute the 0.7 on the left side of the equation: 0.7x - 0.609 = 0.707

   Add 0.609 to both sides: 0.7x = 0.707 + 0.609

   Simplify the right side: 0.7x = 1.316

   Divide both sides by 0.7: x = 1.316 / 0.7

   Simplify: x = 1.88

   So, the value of x is 1.88.